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142233938 = 27114347457
BaseRepresentation
bin10000111101001…
…01000101010010
3100220122020021122
420132211011102
5242402441223
622040322242
73344653130
oct1036450522
9326566248
10142233938
1173318510
123b773382
13236100c2
1414c66750
15c7485c8
hex87a5152

142233938 has 64 divisors (see below), whose sum is σ = 278581248. Its totient is φ = 52859520.

The previous prime is 142233929. The next prime is 142233941. The reversal of 142233938 is 839332241.

It is a junction number, because it is equal to n+sod(n) for n = 142233898 and 142233907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311006 + ... + 311462.

It is an arithmetic number, because the mean of its divisors is an integer number (4352832).

Almost surely, 2142233938 is an apocalyptic number.

142233938 is a deficient number, since it is larger than the sum of its proper divisors (136347310).

142233938 is a wasteful number, since it uses less digits than its factorization.

142233938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its digits is 31104, while the sum is 35.

The square root of 142233938 is about 11926.1870687995. The cubic root of 142233938 is about 521.9966847996.

The spelling of 142233938 in words is "one hundred forty-two million, two hundred thirty-three thousand, nine hundred thirty-eight".

Divisors: 1 2 7 11 14 22 43 47 77 86 94 154 301 329 457 473 517 602 658 914 946 1034 2021 3199 3311 3619 4042 5027 6398 6622 7238 10054 14147 19651 21479 22231 28294 35189 39302 42958 44462 70378 137557 150353 155617 216161 236269 275114 300706 311234 432322 472538 923597 1513127 1653883 1847194 3026254 3307766 6465179 10159567 12930358 20319134 71116969 142233938