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54536979 = 3723112913
BaseRepresentation
bin1101000000001…
…0101100010011
310210121202200010
43100002230103
5102430140404
65224530003
71231361640
oct320025423
9123552603
1054536979
112886a492
1216320903
13b3b6503
147358dc7
154bc4189
hex3402b13

54536979 has 16 divisors (see below), whose sum is σ = 86717952. Its totient is φ = 29808768.

The previous prime is 54536971. The next prime is 54536981. The reversal of 54536979 is 97963545.

It is not a de Polignac number, because 54536979 - 23 = 54536971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54536971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55974 + ... + 56939.

It is an arithmetic number, because the mean of its divisors is an integer number (5419872).

Almost surely, 254536979 is an apocalyptic number.

54536979 is a deficient number, since it is larger than the sum of its proper divisors (32180973).

54536979 is a wasteful number, since it uses less digits than its factorization.

54536979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112946.

The product of its digits is 1020600, while the sum is 48.

The square root of 54536979 is about 7384.9156393286. The cubic root of 54536979 is about 379.2250573736.

The spelling of 54536979 in words is "fifty-four million, five hundred thirty-six thousand, nine hundred seventy-nine".

Divisors: 1 3 7 21 23 69 161 483 112913 338739 790391 2371173 2596999 7790997 18178993 54536979