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54102400145 = 529757492893
BaseRepresentation
bin110010011000110000…
…010001110010010001
312011122111012200122222
4302120300101302101
51341300203301040
640504310110425
73623464546013
oct623060216221
9164574180588
1054102400145
1120a43437aa2
12a59a94b415
135142965531
1428934dc1b3
151619ae5bb5
hexc98c11c91

54102400145 has 16 divisors (see below), whose sum is σ = 67250457360. Its totient is φ = 41734151424.

The previous prime is 54102400129. The next prime is 54102400153. The reversal of 54102400145 is 54100420145.

It can be written as a sum of positive squares in 8 ways, for example, as 74511424 + 54027888721 = 8632^2 + 232439^2 .

It is a cyclic number.

It is not a de Polignac number, because 54102400145 - 24 = 54102400129 is a prime.

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, 136682 + ... + 356211.

It is an arithmetic number, because the mean of its divisors is an integer number (4203153585).

Almost surely, 254102400145 is an apocalyptic number.

It is an amenable number.

54102400145 is a deficient number, since it is larger than the sum of its proper divisors (13148057215).

54102400145 is a wasteful number, since it uses less digits than its factorization.

54102400145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493684.

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 54102400145 in words is "fifty-four billion, one hundred two million, four hundred thousand, one hundred forty-five".

Divisors: 1 5 29 145 757 3785 21953 109765 492893 2464465 14293897 71469485 373120001 1865600005 10820480029 54102400145