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90402113201 = 127711827663
BaseRepresentation
bin101010000110001100…
…0101100011010110001
322122100021112011201212
41110030120230122301
52440120420110301
6105310303005505
76350151166151
oct1241430543261
9278307464655
1090402113201
11353806aa754
121562b599895
1386a922369a
144538492761
15254180b4bb
hex150c62c6b1

90402113201 has 4 divisors (see below), whose sum is σ = 91113940992. Its totient is φ = 89690285412.

The previous prime is 90402113117. The next prime is 90402113233. The reversal of 90402113201 is 10231120409.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90402113201 - 226 = 90335004337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90402113251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355913705 + ... + 355913958.

It is an arithmetic number, because the mean of its divisors is an integer number (22778485248).

Almost surely, 290402113201 is an apocalyptic number.

It is an amenable number.

90402113201 is a deficient number, since it is larger than the sum of its proper divisors (711827791).

90402113201 is a wasteful number, since it uses less digits than its factorization.

90402113201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711827790.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 90402113201 in words is "ninety billion, four hundred two million, one hundred thirteen thousand, two hundred one".

Divisors: 1 127 711827663 90402113201