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90422610719 = 712917515817
BaseRepresentation
bin101010000110110011…
…0111000101100011111
322122101201002120001012
41110031212320230133
52440141142020334
6105312314205435
76350520336530
oct1241546705437
9278351076035
1090422610719
113539122a851
121563642387b
1386b054c3ac
14453b0aa687
1525435099ce
hex150d9b8b1f

90422610719 has 4 divisors (see below), whose sum is σ = 103340126544. Its totient is φ = 77505094896.

The previous prime is 90422610697. The next prime is 90422610721. The reversal of 90422610719 is 91701622409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91701622409 = 133403687403.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-90422610719 is a prime.

It is a super-2 number, since 2×904226107192 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90422610739) 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, 6458757902 + ... + 6458757915.

It is an arithmetic number, because the mean of its divisors is an integer number (25835031636).

Almost surely, 290422610719 is an apocalyptic number.

90422610719 is a deficient number, since it is larger than the sum of its proper divisors (12917515825).

90422610719 is a wasteful number, since it uses less digits than its factorization.

90422610719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12917515824.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 90422610719 in words is "ninety billion, four hundred twenty-two million, six hundred ten thousand, seven hundred nineteen".

Divisors: 1 7 12917515817 90422610719