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142115032 = 231271371021
BaseRepresentation
bin10000111100010…
…00000011011000
3100220102012011201
420132020003120
5242340140112
622034003544
73343646353
oct1036100330
9326365151
10142115032
1173247144
123b7165b4
132359ac47
1414c3529a
15c723257
hex87880d8

142115032 has 32 divisors (see below), whose sum is σ = 270789120. Its totient is φ = 69914880.

The previous prime is 142115021. The next prime is 142115033. The reversal of 142115032 is 230511241.

It is a super-2 number, since 2×1421150322 = 40393364640722048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142115033) 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, 138682 + ... + 139702.

It is an arithmetic number, because the mean of its divisors is an integer number (8462160).

Almost surely, 2142115032 is an apocalyptic number.

It is an amenable number.

142115032 is a deficient number, since it is larger than the sum of its proper divisors (128674088).

142115032 is a wasteful number, since it uses less digits than its factorization.

142115032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 142115032 is about 11921.2009462134. The cubic root of 142115032 is about 521.8511830932.

Adding to 142115032 its reverse (230511241), we get a palindrome (372626273).

The spelling of 142115032 in words is "one hundred forty-two million, one hundred fifteen thousand, thirty-two".

Divisors: 1 2 4 8 127 137 254 274 508 548 1016 1021 1096 2042 4084 8168 17399 34798 69596 129667 139192 139877 259334 279754 518668 559508 1037336 1119016 17764379 35528758 71057516 142115032