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55123430452 = 2243340197919
BaseRepresentation
bin110011010101100111…
…001100110000110100
312021021122110101221021
4303111213030300310
51400343044233302
641153502230524
73661003266526
oct632547146064
9167248411837
1055123430452
11214178151a2
12a824885444
135276356a8c
14294cd61a16
15167957d437
hexcd59ccc34

55123430452 has 24 divisors (see below), whose sum is σ = 96725059200. Its totient is φ = 27487748736.

The previous prime is 55123430423. The next prime is 55123430473. The reversal of 55123430452 is 25403432155.

55123430452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 6956949 + ... + 6964867.

It is an arithmetic number, because the mean of its divisors is an integer number (4030210800).

Almost surely, 255123430452 is an apocalyptic number.

It is an amenable number.

55123430452 is a deficient number, since it is larger than the sum of its proper divisors (41601628748).

55123430452 is a wasteful number, since it uses less digits than its factorization.

55123430452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12375 (or 12373 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 55123430452 in words is "fifty-five billion, one hundred twenty-three million, four hundred thirty thousand, four hundred fifty-two".

Divisors: 1 2 4 433 866 1732 4019 7919 8038 15838 16076 31676 1740227 3428927 3480454 6857854 6960908 13715708 31826461 63652922 127305844 13780857613 27561715226 55123430452