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54512442357 = 318170814119
BaseRepresentation
bin110010110001001100…
…011101101111110101
312012201001202222211120
4302301030131233311
51343120141123412
641013114454153
73636604054242
oct626114355765
9165631688746
1054512442357
112113394185a
12a694134359
1351a98b1969
1428d1b585c9
151640adeb8c
hexcb131dbf5

54512442357 has 4 divisors (see below), whose sum is σ = 72683256480. Its totient is φ = 36341628236.

The previous prime is 54512442349. The next prime is 54512442389. The reversal of 54512442357 is 75324421545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54512442357 - 23 = 54512442349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54512442317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9085407057 + ... + 9085407062.

It is an arithmetic number, because the mean of its divisors is an integer number (18170814120).

Almost surely, 254512442357 is an apocalyptic number.

It is an amenable number.

54512442357 is a deficient number, since it is larger than the sum of its proper divisors (18170814123).

54512442357 is a wasteful number, since it uses less digits than its factorization.

54512442357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18170814122.

The product of its digits is 672000, while the sum is 42.

The spelling of 54512442357 in words is "fifty-four billion, five hundred twelve million, four hundred forty-two thousand, three hundred fifty-seven".

Divisors: 1 3 18170814119 54512442357