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389204952 = 23316216873
BaseRepresentation
bin10111001100101…
…100101111011000
31000010100122211020
4113030230233120
51244114024302
6102342002440
712434121213
oct2714545730
91003318736
10389204952
1118a772494
12aa416420
1362831bb6
143999477a
152427eebc
hex1732cbd8

389204952 has 16 divisors (see below), whose sum is σ = 973012440. Its totient is φ = 129734976.

The previous prime is 389204941. The next prime is 389204957. The reversal of 389204952 is 259402983.

It is a super-2 number, since 2×3892049522 = 302960989322644608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389204957) 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, 8108413 + ... + 8108460.

Almost surely, 2389204952 is an apocalyptic number.

It is an amenable number.

389204952 is an abundant number, since it is smaller than the sum of its proper divisors (583807488).

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

389204952 is a wasteful number, since it uses less digits than its factorization.

389204952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16216882 (or 16216878 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 389204952 is about 19728.2779785768. The cubic root of 389204952 is about 730.1175465933.

The spelling of 389204952 in words is "three hundred eighty-nine million, two hundred four thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 16216873 32433746 48650619 64867492 97301238 129734984 194602476 389204952