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542023122400 = 25521137977523
BaseRepresentation
bin1111110001100110001…
…10000111110111100000
31220211001112010111221021
413320303012013313200
532340030404404100
61053000232335224
754105560344234
oct7706306076740
91824045114837
10542023122400
11199963a16321
128906a544514
133c1603b2086
141c33c3885c4
15e175048a1a
hex7e33187de0

542023122400 has 144 divisors (see below), whose sum is σ = 1336776409584. Its totient is φ = 214592430080.

The previous prime is 542023122391. The next prime is 542023122401. The reversal of 542023122400 is 4221320245.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542023122401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72045039 + ... + 72052561.

It is an arithmetic number, because the mean of its divisors is an integer number (9283169511).

Almost surely, 2542023122400 is an apocalyptic number.

542023122400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542023122400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668388204792).

542023122400 is an abundant number, since it is smaller than the sum of its proper divisors (794753287184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542023122400 is a wasteful number, since it uses less digits than its factorization.

542023122400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8453 (or 8440 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 542023122400 its reverse (4221320245), we get a palindrome (546244442645).

The spelling of 542023122400 in words is "five hundred forty-two billion, twenty-three million, one hundred twenty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 113 160 200 226 400 452 565 797 800 904 1130 1594 1808 2260 2825 3188 3616 3985 4520 5650 6376 7523 7970 9040 11300 12752 15046 15940 18080 19925 22600 25504 30092 31880 37615 39850 45200 60184 63760 75230 79700 90061 90400 120368 127520 150460 159400 180122 188075 240736 300920 318800 360244 376150 450305 601840 637600 720488 752300 850099 900610 1203680 1440976 1504600 1700198 1801220 2251525 2881952 3009200 3400396 3602440 4250495 4503050 5995831 6018400 6800792 7204880 8500990 9006100 11991662 13601584 14409760 17001980 18012200 21252475 23983324 27203168 29979155 34003960 36024400 42504950 47966648 59958310 68007920 72048800 85009900 95933296 119916620 136015840 149895775 170019800 191866592 239833240 299791550 340039600 479666480 599583100 677528903 680079200 959332960 1199166200 1355057806 2398332400 2710115612 3387644515 4796664800 5420231224 6775289030 10840462448 13550578060 16938222575 21680924896 27101156120 33876445150 54202312240 67752890300 108404624480 135505780600 271011561200 542023122400