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9157005312 = 212371319431
BaseRepresentation
bin10001000011100110…
…01101000000000000
3212122011112001210220
420201303031000000
5122223143132222
64112350223040
7442630155330
oct104163150000
925564461726
109157005312
113979988694
1219367b4a80
13b2c162950
1462c2050c0
15388d91b5c
hex221ccd000

9157005312 has 416 divisors, whose sum is σ = 31705067520. Its totient is φ = 2282618880.

The previous prime is 9157005311. The next prime is 9157005329. The reversal of 9157005312 is 2135007519.

It is a tau number, because it is divible by the number of its divisors (416).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9157005311) 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, 21245737 + ... + 21246167.

Almost surely, 29157005312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9157005312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15852533760).

9157005312 is an abundant number, since it is smaller than the sum of its proper divisors (22548062208).

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

9157005312 is a wasteful number, since it uses less digits than its factorization.

9157005312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 9157005312 is about 95692.2426950064. The cubic root of 9157005312 is about 2092.1098716708.

The spelling of 9157005312 in words is "nine billion, one hundred fifty-seven million, five thousand, three hundred twelve".