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9121070490 = 235760172269
BaseRepresentation
bin10000111111010100…
…00111110110011010
3212112122220101111120
420133222013312122
5122134443223430
64105024110110
7442012551150
oct103752076632
925478811446
109121070490
113960674294
121926765336
13b2489053c
1462752d3d0
15385b44610
hex21fa87d9a

9121070490 has 64 divisors (see below), whose sum is σ = 25059767040. Its totient is φ = 2081318400.

The previous prime is 9121070489. The next prime is 9121070501. The reversal of 9121070490 is 940701219.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90076 + ... + 162344.

It is an arithmetic number, because the mean of its divisors is an integer number (391558860).

Almost surely, 29121070490 is an apocalyptic number.

9121070490 is an abundant number, since it is smaller than the sum of its proper divisors (15938696550).

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

9121070490 is a wasteful number, since it uses less digits than its factorization.

9121070490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72887.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 9121070490 is about 95504.2956625512. The cubic root of 9121070490 is about 2089.3695961246.

The spelling of 9121070490 in words is "nine billion, one hundred twenty-one million, seventy thousand, four hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 601 1202 1803 3005 3606 4207 6010 8414 9015 12621 18030 21035 25242 42070 63105 72269 126210 144538 216807 361345 433614 505883 722690 1011766 1084035 1517649 2168070 2529415 3035298 5058830 7588245 15176490 43433669 86867338 130301007 217168345 260602014 304035683 434336690 608071366 651505035 912107049 1303010070 1520178415 1824214098 3040356830 4560535245 9121070490