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54132423145 = 5172371389989
BaseRepresentation
bin110010011010100010…
…110011100111101001
312011201120201000110221
4302122202303213221
51341330400020040
640511301410041
73624311001433
oct623242634751
9164646630427
1054132423145
1120a59383799
12a5a8a09921
135148c47b18
1428974b5653
15161c57674a
hexc9a8b39e9

54132423145 has 32 divisors (see below), whose sum is σ = 72781493760. Its totient is φ = 38437217280.

The previous prime is 54132423113. The next prime is 54132423167.

54132423145 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54132423145 - 25 = 54132423113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54132423145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56190 + ... + 333799.

It is an arithmetic number, because the mean of its divisors is an integer number (2274421680).

Almost surely, 254132423145 is an apocalyptic number.

It is an amenable number.

54132423145 is a deficient number, since it is larger than the sum of its proper divisors (18649070615).

54132423145 is a wasteful number, since it uses less digits than its factorization.

54132423145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390105.

The product of its digits is 57600, while the sum is 34.

The spelling of 54132423145 in words is "fifty-four billion, one hundred thirty-two million, four hundred twenty-three thousand, one hundred forty-five".

Divisors: 1 5 17 23 71 85 115 355 391 1207 1633 1955 6035 8165 27761 138805 389989 1949945 6629813 8969747 27689219 33149065 44848735 138446095 152485699 470716723 636852037 762428495 2353583615 3184260185 10826484629 54132423145