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9090811325 = 52363632453
BaseRepresentation
bin10000111011101101…
…01100010110111101
3212110112222001201202
420131312230112331
5122104221430300
64102023345245
7441164423051
oct103566542675
925415861652
109090811325
113945587112
1219185b2225
13b1b5275cb
146234d3c61
15383168ad5
hex21ddac5bd

9090811325 has 6 divisors (see below), whose sum is σ = 11272606074. Its totient is φ = 7272649040.

The previous prime is 9090811313. The next prime is 9090811343. The reversal of 9090811325 is 5231180909.

It can be written as a sum of positive squares in 3 ways, for example, as 1660888516 + 7429922809 = 40754^2 + 86197^2 .

It is not a de Polignac number, because 9090811325 - 28 = 9090811069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181816202 + ... + 181816251.

It is an arithmetic number, because the mean of its divisors is an integer number (1878767679).

Almost surely, 29090811325 is an apocalyptic number.

It is an amenable number.

9090811325 is a deficient number, since it is larger than the sum of its proper divisors (2181794749).

9090811325 is a wasteful number, since it uses less digits than its factorization.

9090811325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363632463 (or 363632458 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 9090811325 is about 95345.7462344283. The cubic root of 9090811325 is about 2087.0565407937.

The spelling of 9090811325 in words is "nine billion, ninety million, eight hundred eleven thousand, three hundred twenty-five".

Divisors: 1 5 25 363632453 1818162265 9090811325