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54979137 = 326108793
BaseRepresentation
bin1101000110111…
…0101001000001
310211110020012100
43101232221001
5103033313022
65242221013
71235213013
oct321565101
9124406170
1054979137
1129041704
12164b4769
13b50c845
1474321b3
154c601ac
hex346ea41

54979137 has 6 divisors (see below), whose sum is σ = 79414322. Its totient is φ = 36652752.

The previous prime is 54979109. The next prime is 54979153. The reversal of 54979137 is 73197945.

54979137 is a `hidden beast` number, since 549 + 79 + 1 + 37 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31708161 + 23270976 = 5631^2 + 4824^2 .

It is not a de Polignac number, because 54979137 - 219 = 54454849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54979092 and 54979101.

It is not an unprimeable number, because it can be changed into a prime (54979187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3054388 + ... + 3054405.

Almost surely, 254979137 is an apocalyptic number.

It is an amenable number.

54979137 is a deficient number, since it is larger than the sum of its proper divisors (24435185).

54979137 is a wasteful number, since it uses less digits than its factorization.

54979137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6108799 (or 6108796 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 54979137 is about 7414.7917705085. The cubic root of 54979137 is about 380.2471545420.

The spelling of 54979137 in words is "fifty-four million, nine hundred seventy-nine thousand, one hundred thirty-seven".

Divisors: 1 3 9 6108793 18326379 54979137