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172841142 = 23171694521
BaseRepresentation
bin10100100110101…
…01100010110110
3110001020020110210
422103111202312
5323221404032
625052330250
74166061015
oct1223254266
9401206423
10172841142
1189623121
1249a73986
1329a68586
1418d52a7c
15102922cc
hexa4d58b6

172841142 has 16 divisors (see below), whose sum is σ = 366016752. Its totient is φ = 54224640.

The previous prime is 172841101. The next prime is 172841153. The reversal of 172841142 is 241148271.

172841142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 847159 + ... + 847362.

It is an arithmetic number, because the mean of its divisors is an integer number (22876047).

Almost surely, 2172841142 is an apocalyptic number.

172841142 is an abundant number, since it is smaller than the sum of its proper divisors (193175610).

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

172841142 is a wasteful number, since it uses less digits than its factorization.

172841142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694543.

The product of its digits is 3584, while the sum is 30.

The square root of 172841142 is about 13146.9061759792. The cubic root of 172841142 is about 557.0348612128.

The spelling of 172841142 in words is "one hundred seventy-two million, eight hundred forty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 1694521 3389042 5083563 10167126 28806857 57613714 86420571 172841142