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54274400643 = 391091986109
BaseRepresentation
bin110010100011000000…
…011010000110000011
312012002110212012222210
4302203000122012003
51342123221310033
640533332433203
73630653536131
oct624300320603
9165073765883
1054274400643
1121021536571
12a628478803
13516c498288
1428ac2b2751
151629c6dd63
hexca301a183

54274400643 has 8 divisors (see below), whose sum is σ = 72373848400. Its totient is φ = 36178943328.

The previous prime is 54274400563. The next prime is 54274400671. The reversal of 54274400643 is 34600447245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-54274400643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54274407643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965728 + ... + 1020381.

It is an arithmetic number, because the mean of its divisors is an integer number (9046731050).

Almost surely, 254274400643 is an apocalyptic number.

54274400643 is a deficient number, since it is larger than the sum of its proper divisors (18099447757).

54274400643 is a wasteful number, since it uses less digits than its factorization.

54274400643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995221.

The product of its (nonzero) digits is 322560, while the sum is 39.

Adding to 54274400643 its reverse (34600447245), we get a palindrome (88874847888).

The spelling of 54274400643 in words is "fifty-four billion, two hundred seventy-four million, four hundred thousand, six hundred forty-three".

Divisors: 1 3 9109 27327 1986109 5958327 18091466881 54274400643