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142256102 = 2175477649
BaseRepresentation
bin10000111101010…
…10011111100110
3100220200100200112
420132222133212
5242404143402
622041013022
73345104552
oct1036523746
9326610615
10142256102
117333312a
123b784172
132361a211
1414c70862
15c74ee52
hex87aa7e6

142256102 has 16 divisors (see below), whose sum is σ = 226378800. Its totient is φ = 66812928.

The previous prime is 142256071. The next prime is 142256113. The reversal of 142256102 is 201652241.

It is a happy number.

It is a super-3 number, since 3×1422561023 (a number of 25 digits) contains 333 as substring.

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, 14774 + ... + 22422.

It is an arithmetic number, because the mean of its divisors is an integer number (14148675).

Almost surely, 2142256102 is an apocalyptic number.

142256102 is a deficient number, since it is larger than the sum of its proper divisors (84122698).

142256102 is a wasteful number, since it uses less digits than its factorization.

142256102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8215.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 142256102 is about 11927.1162482806. The cubic root of 142256102 is about 522.0237972543.

The spelling of 142256102 in words is "one hundred forty-two million, two hundred fifty-six thousand, one hundred two".

Divisors: 1 2 17 34 547 1094 7649 9299 15298 18598 130033 260066 4184003 8368006 71128051 142256102