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54972995 = 5711142787
BaseRepresentation
bin1101000110110…
…1001001000011
310211102220202212
43101231021003
5103033113440
65242132335
71235156060
oct321551103
9124386685
1054972995
1129038030
12164b10ab
13b509acc
14742dc67
154c5d465
hex346d243

54972995 has 16 divisors (see below), whose sum is σ = 82245888. Its totient is φ = 34268640.

The previous prime is 54972989. The next prime is 54972997. The reversal of 54972995 is 59927945.

It is a happy number.

It is not a de Polignac number, because 54972995 - 28 = 54972739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54972997) 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, 71009 + ... + 71778.

It is an arithmetic number, because the mean of its divisors is an integer number (5140368).

Almost surely, 254972995 is an apocalyptic number.

54972995 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54972995 is a deficient number, since it is larger than the sum of its proper divisors (27272893).

54972995 is a wasteful number, since it uses less digits than its factorization.

54972995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142810.

The product of its digits is 1020600, while the sum is 50.

The square root of 54972995 is about 7414.3775868241. The cubic root of 54972995 is about 380.2329942312.

The spelling of 54972995 in words is "fifty-four million, nine hundred seventy-two thousand, nine hundred ninety-five".

Divisors: 1 5 7 11 35 55 77 385 142787 713935 999509 1570657 4997545 7853285 10994599 54972995