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54972538 = 2136720107
BaseRepresentation
bin1101000110110…
…1000001111010
310211102220010221
43101231001322
5103033110123
65242130254
71235154535
oct321550172
9124386127
1054972538
1129037755
12164b098a
13b50983a
14742da1c
154c5d25d
hex346d07a

54972538 has 8 divisors (see below), whose sum is σ = 82523232. Its totient is φ = 27464796.

The previous prime is 54972527. The next prime is 54972581. The reversal of 54972538 is 83527945.

54972538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×549725382 = 6043959868322888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54972494 and 54972503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7320 + ... + 12787.

It is an arithmetic number, because the mean of its divisors is an integer number (10315404).

Almost surely, 254972538 is an apocalyptic number.

54972538 is a deficient number, since it is larger than the sum of its proper divisors (27550694).

54972538 is a wasteful number, since it uses less digits than its factorization.

54972538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21476.

The product of its digits is 302400, while the sum is 43.

The square root of 54972538 is about 7414.3467682595. The cubic root of 54972538 is about 380.2319405808.

The spelling of 54972538 in words is "fifty-four million, nine hundred seventy-two thousand, five hundred thirty-eight".

Divisors: 1 2 1367 2734 20107 40214 27486269 54972538