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10120091908 = 22172373137647
BaseRepresentation
bin10010110110011010…
…00101100100000100
3222010021201221020211
421123031011210010
5131211220420113
64352112405204
7505533235063
oct113315054404
928107657224
1010120091908
114323589923
121b65246804
13c53847184
146c00a41da
153e36d0b3d
hex25b345904

10120091908 has 96 divisors (see below), whose sum is σ = 20010945024. Its totient is φ = 4453244928.

The previous prime is 10120091903. The next prime is 10120091911. The reversal of 10120091908 is 80919002101.

10120091908 is a modest number, since divided by 91908 gives 10120 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 10120091908.

It is not an unprimeable number, because it can be changed into a prime (10120091903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15641241 + ... + 15641887.

It is an arithmetic number, because the mean of its divisors is an integer number (208447344).

Almost surely, 210120091908 is an apocalyptic number.

It is an amenable number.

10120091908 is a deficient number, since it is larger than the sum of its proper divisors (9890853116).

10120091908 is a wasteful number, since it uses less digits than its factorization.

10120091908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 10120091908 in words is "ten billion, one hundred twenty million, ninety-one thousand, nine hundred eight".

Divisors: 1 2 4 17 23 34 46 68 73 92 137 146 274 292 391 548 647 782 1241 1294 1564 1679 2329 2482 2588 3151 3358 4658 4964 6302 6716 9316 10001 10999 12604 14881 20002 21998 28543 29762 40004 43996 47231 53567 57086 59524 88639 94462 107134 114172 170017 177278 188924 214268 230023 252977 340034 354556 460046 505954 680068 802927 920092 1011908 1086313 1506863 1605854 2038697 2172626 3013726 3211708 3910391 4077394 4345252 6027452 6470647 7820782 8154788 12941294 15641564 18467321 25882588 34657849 36934642 69315698 73869284 110000999 138631396 148824881 220001998 297649762 440003996 595299524 2530022977 5060045954 10120091908