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192020908 = 2253905759
BaseRepresentation
bin10110111001000…
…00000110101100
3111101022200011111
423130200012230
5343124132113
631015401404
74521102502
oct1334400654
9441280144
10192020908
1199433172
1254383264
1330a22551
141b706672
1511cd013d
hexb7201ac

192020908 has 12 divisors (see below), whose sum is σ = 342377280. Its totient is φ = 94198832.

The previous prime is 192020893. The next prime is 192020921. The reversal of 192020908 is 809020291.

It is a self number, because there is not a number n which added to its sum of digits gives 192020908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452668 + ... + 453091.

It is an arithmetic number, because the mean of its divisors is an integer number (28531440).

Almost surely, 2192020908 is an apocalyptic number.

It is an amenable number.

192020908 is a deficient number, since it is larger than the sum of its proper divisors (150356372).

192020908 is a wasteful number, since it uses less digits than its factorization.

192020908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905816 (or 905814 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 192020908 is about 13857.1608924772. The cubic root of 192020908 is about 576.9207680254.

The spelling of 192020908 in words is "one hundred ninety-two million, twenty thousand, nine hundred eight".

Divisors: 1 2 4 53 106 212 905759 1811518 3623036 48005227 96010454 192020908