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90227424071 = 402122439051
BaseRepresentation
bin101010000000111111…
…0010011101101000111
322121220002211001022002
41110001332103231013
52434241210032241
6105241102455515
76342630310331
oct1240176235507
9277802731262
1090227424071
11352a1035174
12155a0b9459b
13867bc8bc35
14451d1bc451
15253130189b
hex1501f93b47

90227424071 has 4 divisors (see below), whose sum is σ = 90249867144. Its totient is φ = 90204981000.

The previous prime is 90227423987. The next prime is 90227424107. The reversal of 90227424071 is 17042472209.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-90227424071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90227424271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11215505 + ... + 11223546.

It is an arithmetic number, because the mean of its divisors is an integer number (22562466786).

Almost surely, 290227424071 is an apocalyptic number.

90227424071 is a deficient number, since it is larger than the sum of its proper divisors (22443073).

90227424071 is a wasteful number, since it uses less digits than its factorization.

90227424071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22443072.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 90227424071 in words is "ninety billion, two hundred twenty-seven million, four hundred twenty-four thousand, seventy-one".

Divisors: 1 4021 22439051 90227424071