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54201692161 = 175360157261
BaseRepresentation
bin110010011110101011…
…000011000000000001
312011220102001020201001
4302132223003000001
51342001113122121
640522214212001
73626111532061
oct623653030001
9164812036631
1054201692161
1120a94495611
12a608054001
13515a3bb9c6
1428a27873a1
1516236aa991
hexc9eac3001

54201692161 has 8 divisors (see below), whose sum is σ = 58472858664. Its totient is φ = 50050840320.

The previous prime is 54201692147. The next prime is 54201692219. The reversal of 54201692161 is 16129610245.

It can be written as a sum of positive squares in 4 ways, for example, as 36267393600 + 17934298561 = 190440^2 + 133919^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 54201692161 - 27 = 54201692033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54201692161.

It is not an unprimeable number, because it can be changed into a prime (54201692561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30077730 + ... + 30079531.

It is an arithmetic number, because the mean of its divisors is an integer number (7309107333).

Almost surely, 254201692161 is an apocalyptic number.

It is an amenable number.

54201692161 is a deficient number, since it is larger than the sum of its proper divisors (4271166503).

54201692161 is a wasteful number, since it uses less digits than its factorization.

54201692161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60157331.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 54201692161 in words is "fifty-four billion, two hundred one million, six hundred ninety-two thousand, one hundred sixty-one".

Divisors: 1 17 53 901 60157261 1022673437 3188334833 54201692161