Search a number
-
+
431331242200 = 235241271194101
BaseRepresentation
bin1100100011011010101…
…10000111000011011000
31112020100012211101100121
412101231112013003120
524031331244222300
6530052325243024
743106535031315
oct6215526070330
91466305741317
10431331242200
11156a212723a1
126b717b63474
133189c759901
1416c3b341d0c
15b34733481a
hex646d5870d8

431331242200 has 96 divisors (see below), whose sum is σ = 1031100880320. Its totient is φ = 167702400000.

The previous prime is 431331242183. The next prime is 431331242201. The reversal of 431331242200 is 2242133134.

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 (431331242201) 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, 2125150 + ... + 2319250.

It is an arithmetic number, because the mean of its divisors is an integer number (10740634170).

Almost surely, 2431331242200 is an apocalyptic number.

431331242200 is a gapful number since it is divisible by the number (40) 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 431331242200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515550440160).

431331242200 is an abundant number, since it is smaller than the sum of its proper divisors (599769638120).

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

431331242200 is a wasteful number, since it uses less digits than its factorization.

431331242200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194429 (or 194420 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 431331242200 its reverse (2242133134), we get a palindrome (433573375334).

The spelling of 431331242200 in words is "four hundred thirty-one billion, three hundred thirty-one million, two hundred forty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 41 50 82 100 164 200 205 271 328 410 542 820 1025 1084 1355 1640 2050 2168 2710 4100 5420 6775 8200 10840 11111 13550 22222 27100 44444 54200 55555 88888 111110 194101 222220 277775 388202 444440 555550 776404 970505 1111100 1552808 1941010 2222200 3882020 4852525 7764040 7958141 9705050 15916282 19410100 31832564 38820200 39790705 52601371 63665128 79581410 105202742 159162820 198953525 210405484 263006855 318325640 397907050 420810968 526013710 795814100 1052027420 1315034275 1591628200 2104054840 2156656211 2630068550 4313312422 5260137100 8626624844 10520274200 10783281055 17253249688 21566562110 43133124220 53916405275 86266248440 107832810550 215665621100 431331242200