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55513288 = 2319735003
BaseRepresentation
bin1101001111000…
…1000011001000
310212110100220201
43103301003020
5103202411123
65301501544
71242566215
oct323610310
9125410821
1055513288
1129376a56
12167118b4
13b6689cc
147530b0c
154d185ad
hex34f10c8

55513288 has 32 divisors (see below), whose sum is σ = 111088800. Its totient is φ = 25930368.

The previous prime is 55513253. The next prime is 55513291. The reversal of 55513288 is 88231555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8595 + ... + 13597.

It is an arithmetic number, because the mean of its divisors is an integer number (3471525).

Almost surely, 255513288 is an apocalyptic number.

It is an amenable number.

55513288 is an abundant number, since it is smaller than the sum of its proper divisors (55575512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55513288 is a wasteful number, since it uses less digits than its factorization.

55513288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101 (or 5097 counting only the distinct ones).

The product of its digits is 48000, while the sum is 37.

The square root of 55513288 is about 7450.7239916669. The cubic root of 55513288 is about 381.4746210874.

The spelling of 55513288 in words is "fifty-five million, five hundred thirteen thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 19 38 73 76 146 152 292 584 1387 2774 5003 5548 10006 11096 20012 40024 95057 190114 365219 380228 730438 760456 1460876 2921752 6939161 13878322 27756644 55513288