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15121054141140 = 2235252017569019
BaseRepresentation
bin1101110000001010010100…
…0011111000101011010100
31222112120002021001220112110
43130002211003320223110
53440220404330004030
652054303311551020
73120313550335563
oct334024503705324
958476067056473
1015121054141140
1148aa891948522
12184268a52b470
13858ba891c2ac
143a3c11c1dbda
151b34eee431b0
hexdc0a50f8ad4

15121054141140 has 24 divisors (see below), whose sum is σ = 42338951595360. Its totient is φ = 4032281104288.

The previous prime is 15121054141097. The next prime is 15121054141159. The reversal of 15121054141140 is 4114145012151.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 15121054141098 and 15121054141107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126008784450 + ... + 126008784569.

It is an arithmetic number, because the mean of its divisors is an integer number (1764122983140).

Almost surely, 215121054141140 is an apocalyptic number.

15121054141140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15121054141140 is an abundant number, since it is smaller than the sum of its proper divisors (27217897454220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15121054141140 is a wasteful number, since it uses less digits than its factorization.

15121054141140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252017569031 (or 252017569029 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

Adding to 15121054141140 its reverse (4114145012151), we get a palindrome (19235199153291).

The spelling of 15121054141140 in words is "fifteen trillion, one hundred twenty-one billion, fifty-four million, one hundred forty-one thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 252017569019 504035138038 756052707057 1008070276076 1260087845095 1512105414114 2520175690190 3024210828228 3780263535285 5040351380380 7560527070570 15121054141140