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54251766842 = 27131409211559
BaseRepresentation
bin110010100001101010…
…000100010000111010
312012000220021022020212
4302201222010100322
51342101423014332
640531203351122
73630260260310
oct624152042072
9165026238225
1054251766842
112100a787449
12a6209824a2
1351678a20b0
1428a92a00b0
151627c9c8b2
hexca1a8443a

54251766842 has 32 divisors (see below), whose sum is σ = 100228665600. Its totient is φ = 21446903808.

The previous prime is 54251766809. The next prime is 54251766883. The reversal of 54251766842 is 24866715245.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150659 + ... + 362217.

It is an arithmetic number, because the mean of its divisors is an integer number (3132145800).

Almost surely, 254251766842 is an apocalyptic number.

54251766842 is a deficient number, since it is larger than the sum of its proper divisors (45976898758).

54251766842 is a wasteful number, since it uses less digits than its factorization.

54251766842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212990.

The product of its digits is 3225600, while the sum is 50.

The spelling of 54251766842 in words is "fifty-four billion, two hundred fifty-one million, seven hundred sixty-six thousand, eight hundred forty-two".

Divisors: 1 2 7 13 14 26 91 182 1409 2818 9863 18317 19726 36634 128219 211559 256438 423118 1480913 2750267 2961826 5500534 19251869 38503738 298086631 596173262 2086606417 3875126203 4173212834 7750252406 27125883421 54251766842