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204120883922 = 23194692
BaseRepresentation
bin1011111000011010001…
…1011000001011010010
3201111212112110021111212
42332012203120023102
511321014421241142
6233434414540122
720514206612564
oct2760643301322
9644775407455
10204120883922
1179626a1029a
1233687807642
131632ccb6c27
149c45501334
15549a126d82
hex2f868d82d2

204120883922 has 6 divisors (see below), whose sum is σ = 306182284293. Its totient is φ = 102060122492.

The previous prime is 204120883907. The next prime is 204120883927. The reversal of 204120883922 is 229388021402.

It can be written as a sum of positive squares in 2 ways, for example, as 137469651361 + 66651232561 = 370769^2 + 258169^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=319469.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204120883922.

It is not an unprimeable number, because it can be changed into a prime (204120883927) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 479204 + ... + 798672.

Almost surely, 2204120883922 is an apocalyptic number.

204120883922 is a deficient number, since it is larger than the sum of its proper divisors (102061400371).

204120883922 is an frugal number, since it uses more digits than its factorization.

204120883922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638940 (or 319471 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 204120883922 in words is "two hundred four billion, one hundred twenty million, eight hundred eighty-three thousand, nine hundred twenty-two".

Divisors: 1 2 319469 638938 102060441961 204120883922