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90995853 = 3132179479
BaseRepresentation
bin1010110110001…
…11110010001101
320100020001211210
411123013302031
5141243331403
613010205033
72153311014
oct533076215
9210201753
1090995853
1147401593
1226583779
1315b10300
14c129a7b
157ec6b03
hex56c7c8d

90995853 has 12 divisors (see below), whose sum is σ = 131379360. Its totient is φ = 55997136.

The previous prime is 90995837. The next prime is 90995857. The reversal of 90995853 is 35859909.

It is not a de Polignac number, because 90995853 - 24 = 90995837 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90995857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89233 + ... + 90246.

It is an arithmetic number, because the mean of its divisors is an integer number (10948280).

Almost surely, 290995853 is an apocalyptic number.

It is an amenable number.

90995853 is a deficient number, since it is larger than the sum of its proper divisors (40383507).

90995853 is a wasteful number, since it uses less digits than its factorization.

90995853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179508 (or 179495 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 90995853 is about 9539.1746498321. The cubic root of 90995853 is about 449.7873118365.

The spelling of 90995853 in words is "ninety million, nine hundred ninety-five thousand, eight hundred fifty-three".

Divisors: 1 3 13 39 169 507 179479 538437 2333227 6999681 30331951 90995853