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142928642902 = 2139514131809
BaseRepresentation
bin1000010100011100110…
…1100000001101010110
3111122220221110100112211
42011013031200031112
54320204213033102
6145354400504034
713216622263543
oct2050715401526
9448827410484
10142928642902
1155685546981
122384a61b01a
131062a5510a6
146cbc57bbca
153ab7dbc7d7
hex2147360356

142928642902 has 8 divisors (see below), whose sum is σ = 215935360200. Its totient is φ = 70950189504.

The previous prime is 142928642887. The next prime is 142928642903. The reversal of 142928642902 is 209246829241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142928642903) 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, 257065627 + ... + 257066182.

It is an arithmetic number, because the mean of its divisors is an integer number (26991920025).

Almost surely, 2142928642902 is an apocalyptic number.

142928642902 is a deficient number, since it is larger than the sum of its proper divisors (73006717298).

142928642902 is a wasteful number, since it uses less digits than its factorization.

142928642902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514131950.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 142928642902 in words is "one hundred forty-two billion, nine hundred twenty-eight million, six hundred forty-two thousand, nine hundred two".

Divisors: 1 2 139 278 514131809 1028263618 71464321451 142928642902