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4245695280 = 2432518132579
BaseRepresentation
bin1111110100010000…
…0010101100110000
3101221220000200000100
43331010002230300
532143344222110
61541143552400
7210132546231
oct37504025460
911856020010
104245695280
111889647782
129a5a5b700
135287b7938
142c3c2d088
1519cb08bc0
hexfd102b30

4245695280 has 120 divisors (see below), whose sum is σ = 14337676080. Its totient is φ = 1125895680.

The previous prime is 4245695269. The next prime is 4245695299. The reversal of 4245695280 is 825965424.

4245695280 is a `hidden beast` number, since 4 + 2 + 4 + 569 + 5 + 2 + 80 = 666.

It is a Cunningham number, because it is equal to 651592-1.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×42456952802 = 36051856821228556800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114031 + ... + 146609.

It is an arithmetic number, because the mean of its divisors is an integer number (119480634).

Almost surely, 24245695280 is an apocalyptic number.

4245695280 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 4245695280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7168838040).

4245695280 is an abundant number, since it is smaller than the sum of its proper divisors (10091980800).

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

4245695280 is a wasteful number, since it uses less digits than its factorization.

4245695280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32779 (or 32770 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 4245695280 is about 65158.9999923265. Note that the first 5 decimals coincide. The cubic root of 4245695280 is about 1619.2588287659.

The spelling of 4245695280 in words is "four billion, two hundred forty-five million, six hundred ninety-five thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 181 240 360 362 543 720 724 905 1086 1448 1629 1810 2172 2715 2896 3258 3620 4344 5430 6516 7240 8145 8688 10860 13032 14480 16290 21720 26064 32579 32580 43440 65158 65160 97737 130316 130320 162895 195474 260632 293211 325790 390948 488685 521264 586422 651580 781896 977370 1172844 1303160 1466055 1563792 1954740 2345688 2606320 2932110 3909480 4691376 5864220 5896799 7818960 11728440 11793598 17690397 23456880 23587196 29483995 35380794 47174392 53071191 58967990 70761588 88451985 94348784 106142382 117935980 141523176 176903970 212284764 235871960 265355955 283046352 353807940 424569528 471743920 530711910 707615880 849139056 1061423820 1415231760 2122847640 4245695280