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8725919902 = 2721713738231
BaseRepresentation
bin10000010000001101…
…01111100010011110
3211112010100122210121
420020012233202132
5120332313414102
64001510425154
7426144044500
oct101006574236
924463318717
108725919902
113778610857
1218363621ba
13a90a5931b
145cac6bd70
153610dcb37
hex2081af89e

8725919902 has 48 divisors (see below), whose sum is σ = 16239577248. Its totient is φ = 3493916160.

The previous prime is 8725919857. The next prime is 8725919903. The reversal of 8725919902 is 2099195278.

It is a super-2 number, since 2×87259199022 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8725919902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725919903) 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, 209127 + ... + 247357.

It is an arithmetic number, because the mean of its divisors is an integer number (338324526).

Almost surely, 28725919902 is an apocalyptic number.

8725919902 is a deficient number, since it is larger than the sum of its proper divisors (7513657346).

8725919902 is a wasteful number, since it uses less digits than its factorization.

8725919902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38401 (or 38394 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 8725919902 is about 93412.6324540744. The cubic root of 8725919902 is about 2058.7506093185.

The spelling of 8725919902 in words is "eight billion, seven hundred twenty-five million, nine hundred nineteen thousand, nine hundred two".

Divisors: 1 2 7 14 17 34 49 98 119 137 238 274 833 959 1666 1918 2329 4658 6713 13426 16303 32606 38231 76462 114121 228242 267617 535234 649927 1299854 1873319 3746638 4549489 5237647 9098978 10475294 31846423 36663529 63692846 73327058 89039999 178079998 256644703 513289406 623279993 1246559986 4362959951 8725919902