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90953023 = 712993289
BaseRepresentation
bin1010110101111…
…01010100111111
320100010220002111
411122331110333
5141240444043
613005234451
72153042110
oct532752477
9210126074
1090953023
1147382397
1226562a27
1315ac6975
14c118207
157eb909d
hex56bd53f

90953023 has 4 divisors (see below), whose sum is σ = 103946320. Its totient is φ = 77959728.

The previous prime is 90952997. The next prime is 90953069. The reversal of 90953023 is 32035909.

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

It is not a de Polignac number, because 90953023 - 25 = 90952991 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 (90950023) 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, 6496638 + ... + 6496651.

It is an arithmetic number, because the mean of its divisors is an integer number (25986580).

Almost surely, 290953023 is an apocalyptic number.

90953023 is a deficient number, since it is larger than the sum of its proper divisors (12993297).

90953023 is a wasteful number, since it uses less digits than its factorization.

90953023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993296.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 90953023 is about 9536.9294324746. The cubic root of 90953023 is about 449.7167320127.

The spelling of 90953023 in words is "ninety million, nine hundred fifty-three thousand, twenty-three".

Divisors: 1 7 12993289 90953023