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90053430912 = 27348685709
BaseRepresentation
bin101001111011110011…
…0100100111010000000
322121102222102021120000
41103313212210322000
52433412134242122
6105211525320000
76335415350544
oct1236746447200
9277388367500
1090053430912
11352118a5575
1215552866000
138651c0c1c3
144504049a24
152520dd30ac
hex14f79a4e80

90053430912 has 80 divisors (see below), whose sum is σ = 267997582050. Its totient is φ = 30017806848.

The previous prime is 90053430911. The next prime is 90053430923. The reversal of 90053430912 is 21903435009.

It is a happy number.

90053430912 is a `hidden beast` number, since 9 + 0 + 0 + 534 + 30 + 91 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45943350336 + 44110080576 = 214344^2 + 210024^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (90053430911) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4332487 + ... + 4353222.

Almost surely, 290053430912 is an apocalyptic number.

It is an amenable number.

90053430912 is an abundant number, since it is smaller than the sum of its proper divisors (177944151138).

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

90053430912 is an equidigital number, since it uses as much as digits as its factorization.

90053430912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8685735 (or 8685714 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The spelling of 90053430912 in words is "ninety billion, fifty-three million, four hundred thirty thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 288 324 384 432 576 648 864 1152 1296 1728 2592 3456 5184 10368 8685709 17371418 26057127 34742836 52114254 69485672 78171381 104228508 138971344 156342762 208457016 234514143 277942688 312685524 416914032 469028286 555885376 625371048 703542429 833828064 938056572 1111770752 1250742096 1407084858 1667656128 1876113144 2501484192 2814169716 3335312256 3752226288 5002968384 5628339432 7504452576 10005936768 11256678864 15008905152 22513357728 30017810304 45026715456 90053430912