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142331698 = 2194779693
BaseRepresentation
bin10000111101111…
…00111100110010
3100220211012101101
420132330330302
5242414103243
622042355014
73345541135
oct1036747462
9326735341
10142331698
1173384a03
123b7bba6a
1323645752
1414c9021c
15c76754d
hex87bcf32

142331698 has 16 divisors (see below), whose sum is σ = 229518720. Its totient is φ = 65984976.

The previous prime is 142331687. The next prime is 142331699. The reversal of 142331698 is 896133241.

It is not an unprimeable number, because it can be changed into a prime (142331699) 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, 38061 + ... + 41632.

It is an arithmetic number, because the mean of its divisors is an integer number (14344920).

Almost surely, 2142331698 is an apocalyptic number.

142331698 is a deficient number, since it is larger than the sum of its proper divisors (87187022).

142331698 is a wasteful number, since it uses less digits than its factorization.

142331698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79761.

The product of its digits is 31104, while the sum is 37.

The square root of 142331698 is about 11930.2849085845. The cubic root of 142331698 is about 522.1162500494.

It can be divided in two parts, 14233 and 1698, that added together give a triangular number (15931 = T178).

The spelling of 142331698 in words is "one hundred forty-two million, three hundred thirty-one thousand, six hundred ninety-eight".

Divisors: 1 2 19 38 47 94 893 1786 79693 159386 1514167 3028334 3745571 7491142 71165849 142331698