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54967881 = 359310553
BaseRepresentation
bin1101000110101…
…1111001001001
310211102122202110
43101223321021
5103032433011
65242052533
71235135133
oct321537111
9124378673
1054967881
1129034201
12164aa149
13b507697
14742c053
154c5bba6
hex346be49

54967881 has 8 divisors (see below), whose sum is σ = 74532960. Its totient is φ = 36024032.

The previous prime is 54967879. The next prime is 54967897. The reversal of 54967881 is 18876945.

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

It is a cyclic number.

It is not a de Polignac number, because 54967881 - 21 = 54967879 is a prime.

It is a super-2 number, since 2×549678812 = 6042935883260322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54967881.

It is not an unprimeable number, because it can be changed into a prime (54967811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155100 + ... + 155453.

It is an arithmetic number, because the mean of its divisors is an integer number (9316620).

Almost surely, 254967881 is an apocalyptic number.

It is an amenable number.

54967881 is a deficient number, since it is larger than the sum of its proper divisors (19565079).

54967881 is a wasteful number, since it uses less digits than its factorization.

54967881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310615.

The product of its digits is 483840, while the sum is 48.

The square root of 54967881 is about 7414.0327083174. The cubic root of 54967881 is about 380.2212031579.

The spelling of 54967881 in words is "fifty-four million, nine hundred sixty-seven thousand, eight hundred eighty-one".

Divisors: 1 3 59 177 310553 931659 18322627 54967881