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55243144724 = 22479170916871
BaseRepresentation
bin110011011100101111…
…110111111000010100
312021120222201112001012
4303130233313320110
51401114221112344
641213420151352
73663655660655
oct633457677024
9167528645035
1055243144724
1121479351309
12a858998558
1352950b0921
142960c0552c
151684d2929e
hexcdcbf7e14

55243144724 has 24 divisors (see below), whose sum is σ = 96939763200. Its totient is φ = 27546145760.

The previous prime is 55243144709. The next prime is 55243144741. The reversal of 55243144724 is 42744134255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3266009 + ... + 3282879.

It is an arithmetic number, because the mean of its divisors is an integer number (4039156800).

Almost surely, 255243144724 is an apocalyptic number.

It is an amenable number.

55243144724 is a deficient number, since it is larger than the sum of its proper divisors (41696618476).

55243144724 is a wasteful number, since it uses less digits than its factorization.

55243144724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19063 (or 19061 counting only the distinct ones).

The product of its digits is 537600, while the sum is 41.

Adding to 55243144724 its reverse (42744134255), we get a palindrome (97987278979).

The spelling of 55243144724 in words is "fifty-five billion, two hundred forty-three million, one hundred forty-four thousand, seven hundred twenty-four".

Divisors: 1 2 4 479 958 1709 1916 3418 6836 16871 33742 67484 818611 1637222 3274444 8081209 16162418 28832539 32324836 57665078 115330156 13810786181 27621572362 55243144724