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252681052 = 22136137927
BaseRepresentation
bin11110000111110…
…01101101011100
3122121110112020111
433003321231130
51004141243202
641023455404
76155516311
oct1703715534
9577415214
10252681052
1111a6a5018
1270757564
1340470b20
14257b6d08
15172b36d7
hexf0f9b5c

252681052 has 24 divisors (see below), whose sum is σ = 477043616. Its totient is φ = 116417088.

The previous prime is 252681049. The next prime is 252681109. The reversal of 252681052 is 250186252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27913 + ... + 35839.

Almost surely, 2252681052 is an apocalyptic number.

It is an amenable number.

252681052 is a deficient number, since it is larger than the sum of its proper divisors (224362564).

252681052 is a wasteful number, since it uses less digits than its factorization.

252681052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8557 (or 8555 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 252681052 is about 15895.9445142464. The cubic root of 252681052 is about 632.2044650358.

The spelling of 252681052 in words is "two hundred fifty-two million, six hundred eighty-one thousand, fifty-two".

Divisors: 1 2 4 13 26 52 613 1226 2452 7927 7969 15854 15938 31708 31876 103051 206102 412204 4859251 9718502 19437004 63170263 126340526 252681052