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90065308032 = 2732717656989
BaseRepresentation
bin101001111100001001…
…1111000100110000000
322121110210202200220100
41103320103320212000
52433423204324112
6105213032042400
76335621325660
oct1237023704600
9277423680810
1090065308032
1135218577a77
1215556833400
13865450a29b
14450585c1a0
152521e7c2dc
hex14f84f8980

90065308032 has 192 divisors, whose sum is σ = 313620746400. Its totient is φ = 24219205632.

The previous prime is 90065308013. The next prime is 90065308037. The reversal of 90065308032 is 23080356009.

90065308032 is a `hidden beast` number, since 90 + 0 + 6 + 530 + 8 + 0 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×900653080322 (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90065308037) 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, 191407 + ... + 465582.

Almost surely, 290065308032 is an apocalyptic number.

It is an amenable number.

90065308032 is an abundant number, since it is smaller than the sum of its proper divisors (223555438368).

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

90065308032 is a wasteful number, since it uses less digits than its factorization.

90065308032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657033 (or 657018 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 90065308032 in words is "ninety billion, sixty-five million, three hundred eight thousand, thirty-two".