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90151545013 = 471918117979
BaseRepresentation
bin101001111110101110…
…0110110100010110101
322121200211000222210121
41103331130312202311
52434112243420023
6105225352251541
76341016326515
oct1237534664265
9277624028717
1090151545013
1135262219102
121557b6a0bb1
13866934249a
1445130a9845
152529813d5d
hex14fd7368b5

90151545013 has 4 divisors (see below), whose sum is σ = 92069663040. Its totient is φ = 88233426988.

The previous prime is 90151544941. The next prime is 90151545017. The reversal of 90151545013 is 31054515109.

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 90151545013 - 29 = 90151544501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90151545013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90151545017) 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, 959058943 + ... + 959059036.

It is an arithmetic number, because the mean of its divisors is an integer number (23017415760).

Almost surely, 290151545013 is an apocalyptic number.

It is an amenable number.

90151545013 is a deficient number, since it is larger than the sum of its proper divisors (1918118027).

90151545013 is a wasteful number, since it uses less digits than its factorization.

90151545013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918118026.

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 90151545013 in words is "ninety billion, one hundred fifty-one million, five hundred forty-five thousand, thirteen".

Divisors: 1 47 1918117979 90151545013