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38401125660887 = 1123831828712113
BaseRepresentation
bin10001011101100111101010…
…11101000011100011010111
312000222010000110210000210012
420232303311131003203113
520013131001132122022
6213401122242150435
711042250456306563
oct1056636535034327
9160863013700705
1038401125660887
111126590a358340
12438248b35241b
131857297938372
1496a8a54ca6a3
15468d7c38bde2
hex22ecf57438d7

38401125660887 has 16 divisors (see below), whose sum is σ = 44240203461888. Its totient is φ = 32989966500480.

The previous prime is 38401125660847. The next prime is 38401125660893. The reversal of 38401125660887 is 78806652110483.

It is a de Polignac number, because none of the positive numbers 2k-38401125660887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38401125660827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914335058 + ... + 914377055.

It is an arithmetic number, because the mean of its divisors is an integer number (2765012716368).

Almost surely, 238401125660887 is an apocalyptic number.

38401125660887 is a deficient number, since it is larger than the sum of its proper divisors (5839077801001).

38401125660887 is a wasteful number, since it uses less digits than its factorization.

38401125660887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828712230.

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 38401125660887 in words is "thirty-eight trillion, four hundred one billion, one hundred twenty-five million, six hundred sixty thousand, eight hundred eighty-seven".

Divisors: 1 11 23 83 253 913 1909 20999 1828712113 20115833243 42060378599 151783105379 462664164589 1669614159169 3491011423717 38401125660887