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142647032 = 23111620989
BaseRepresentation
bin10001000000010…
…01111011111000
3100221102012221102
420200021323320
5243004201112
622053230532
73351323363
oct1040117370
9327365842
10142647032
117357a910
123b932448
1323726138
1414d330da
15c7cabc2
hex8809ef8

142647032 has 16 divisors (see below), whose sum is σ = 291778200. Its totient is φ = 64839520.

The previous prime is 142647031. The next prime is 142647053. The reversal of 142647032 is 230746241.

It is a junction number, because it is equal to n+sod(n) for n = 142646986 and 142647004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142647031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810407 + ... + 810582.

Almost surely, 2142647032 is an apocalyptic number.

It is an amenable number.

142647032 is an abundant number, since it is smaller than the sum of its proper divisors (149131168).

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

142647032 is a wasteful number, since it uses less digits than its factorization.

142647032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621006 (or 1621002 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 142647032 is about 11943.4932913281. The cubic root of 142647032 is about 522.5015462054.

The spelling of 142647032 in words is "one hundred forty-two million, six hundred forty-seven thousand, thirty-two".

Divisors: 1 2 4 8 11 22 44 88 1620989 3241978 6483956 12967912 17830879 35661758 71323516 142647032