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252505356 = 22353974093
BaseRepresentation
bin11110000110011…
…10110100001100
3122121010121020020
433003032310030
51004120132411
641020022140
76154155135
oct1703166414
9577117206
10252505356
1111a595014
1270691950
134040bb6c
142576cc8c
151727b606
hexf0ced0c

252505356 has 48 divisors (see below), whose sum is σ = 606632544. Its totient is φ = 81709056.

The previous prime is 252505343. The next prime is 252505381. The reversal of 252505356 is 653505252.

252505356 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59646 + ... + 63738.

It is an arithmetic number, because the mean of its divisors is an integer number (12638178).

Almost surely, 2252505356 is an apocalyptic number.

It is an amenable number.

252505356 is an abundant number, since it is smaller than the sum of its proper divisors (354127188).

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

252505356 is a wasteful number, since it uses less digits than its factorization.

252505356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250 (or 4248 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 252505356 is about 15890.4171122095. The cubic root of 252505356 is about 632.0579014141.

The spelling of 252505356 in words is "two hundred fifty-two million, five hundred five thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 12 53 97 106 159 194 212 291 318 388 582 636 1164 4093 5141 8186 10282 12279 15423 16372 20564 24558 30846 49116 61692 216929 397021 433858 650787 794042 867716 1191063 1301574 1588084 2382126 2603148 4764252 21042113 42084226 63126339 84168452 126252678 252505356