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55142424155 = 573132473309
BaseRepresentation
bin110011010110101111…
…101001111001011011
312021022222012101101202
4303112233221321123
51400412430033110
641155421304415
73661323605000
oct632657517133
9167288171352
1055142424155
1121427508475
12a82b10510b
13527a277160
1429516a78a7
15167b0810a5
hexcd6be9e5b

55142424155 has 32 divisors (see below), whose sum is σ = 83103216000. Its totient is φ = 34903322496.

The previous prime is 55142424109. The next prime is 55142424199.

55142424155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55142424155 - 226 = 55075315291 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1214360 + ... + 1258949.

It is an arithmetic number, because the mean of its divisors is an integer number (2596975500).

Almost surely, 255142424155 is an apocalyptic number.

55142424155 is a deficient number, since it is larger than the sum of its proper divisors (27960791845).

55142424155 is a wasteful number, since it uses less digits than its factorization.

55142424155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473348 (or 2473334 counting only the distinct ones).

The product of its digits is 160000, while the sum is 38.

The spelling of 55142424155 in words is "fifty-five billion, one hundred forty-two million, four hundred twenty-four thousand, one hundred fifty-five".

Divisors: 1 5 7 13 35 49 65 91 245 343 455 637 1715 3185 4459 22295 2473309 12366545 17313163 32153017 86565815 121192141 160765085 225071119 605960705 848344987 1125355595 1575497833 4241724935 7877489165 11028484831 55142424155