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90125988297 = 3181487499683
BaseRepresentation
bin101001111101111101…
…1010111000111001001
322121122000221120120120
41103323323113013021
52434034223111142
6105223040413453
76340256155242
oct1237373270711
9277560846516
1090125988297
1135249852a54
1215573017289
138663c64a77
14450d935cc9
1525274667ec
hex14fbed71c9

90125988297 has 32 divisors (see below), whose sum is σ = 121500288000. Its totient is φ = 59422714560.

The previous prime is 90125988193. The next prime is 90125988299. The reversal of 90125988297 is 79288952109.

It is not a de Polignac number, because 90125988297 - 214 = 90125971913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90125988297.

It is not an unprimeable number, because it can be changed into a prime (90125988299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131955718 + ... + 131956400.

It is an arithmetic number, because the mean of its divisors is an integer number (3796884000).

Almost surely, 290125988297 is an apocalyptic number.

It is an amenable number.

90125988297 is a deficient number, since it is larger than the sum of its proper divisors (31374299703).

90125988297 is a wasteful number, since it uses less digits than its factorization.

90125988297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853.

The product of its (nonzero) digits is 6531840, while the sum is 60.

The spelling of 90125988297 in words is "ninety billion, one hundred twenty-five million, nine hundred eighty-eight thousand, two hundred ninety-seven".

Divisors: 1 3 181 487 499 543 683 1461 1497 2049 88147 90319 123623 243013 264441 270957 332621 340817 370869 729039 997863 1022451 43985353 60204401 61687877 131956059 165977879 180613203 185063631 497933637 30041996099 90125988297