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252908190 = 2335936697
BaseRepresentation
bin11110001001100…
…01001010011110
3122121220001211000
433010301022132
51004221030230
641032411130
76160453443
oct1704611236
9577801730
10252908190
1111a83a737
1270846aa6
1340520322
14258359ca
151730ab60
hexf13129e

252908190 has 32 divisors (see below), whose sum is σ = 674422560. Its totient is φ = 67442112.

The previous prime is 252908189. The next prime is 252908203. The reversal of 252908190 is 91809252.

252908190 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2529081902 = 127925105138152200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468079 + ... + 468618.

It is an arithmetic number, because the mean of its divisors is an integer number (21075705).

Almost surely, 2252908190 is an apocalyptic number.

252908190 is an abundant number, since it is smaller than the sum of its proper divisors (421514370).

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

252908190 is a wasteful number, since it uses less digits than its factorization.

252908190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936713 (or 936707 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 252908190 is about 15903.0874360924. The cubic root of 252908190 is about 632.3938403384.

The spelling of 252908190 in words is "two hundred fifty-two million, nine hundred eight thousand, one hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 936697 1873394 2810091 4683485 5620182 8430273 9366970 14050455 16860546 25290819 28100910 42151365 50581638 84302730 126454095 252908190