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142354555642172 = 22179546712192849
BaseRepresentation
bin100000010111100010000000…
…101110001010000100111100
3200200000221222202002012011002
4200113202000232022010330
5122124314112221022142
61222432440253545432
741661530411030036
oct4027420056120474
9620027882065132
10142354555642172
11413a4256536805
1213b713247a5278
136157c915cc433
142721dd6680c56
15116ce7e44ca32
hex817880b8a13c

142354555642172 has 24 divisors (see below), whose sum is σ = 263775014395200. Its totient is φ = 66990278405120.

The previous prime is 142354555642171. The next prime is 142354555642267. The reversal of 142354555642172 is 271246555453241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142354555642171) 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, 63821204 + ... + 66014052.

It is an arithmetic number, because the mean of its divisors is an integer number (10990625599800).

Almost surely, 2142354555642172 is an apocalyptic number.

It is an amenable number.

142354555642172 is a deficient number, since it is larger than the sum of its proper divisors (121420458753028).

142354555642172 is a wasteful number, since it uses less digits than its factorization.

142354555642172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147541 (or 3147539 counting only the distinct ones).

The product of its digits is 40320000, while the sum is 56.

The spelling of 142354555642172 in words is "one hundred forty-two trillion, three hundred fifty-four billion, five hundred fifty-five million, six hundred forty-two thousand, one hundred seventy-two".

Divisors: 1 2 4 17 34 68 954671 1909342 2192849 3818684 4385698 8771396 16229407 32458814 37278433 64917628 74556866 149113732 2093449347679 4186898695358 8373797390716 35588638910543 71177277821086 142354555642172