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252945360 = 24325794447
BaseRepresentation
bin11110001001110…
…10001111010000
3122121221221210200
433010322033100
51004223222420
641033255200
76161000013
oct1704721720
9577857720
10252945360
1111a865658
1270864500
1340534215
142584537a
1517316b90
hexf13a3d0

252945360 has 120 divisors (see below), whose sum is σ = 860421120. Its totient is φ = 66583296.

The previous prime is 252945349. The next prime is 252945361. The reversal of 252945360 is 63549252.

252945360 is a `hidden beast` number, since 2 + 5 + 294 + 5 + 360 = 666.

252945360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252945361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54657 + ... + 59103.

It is an arithmetic number, because the mean of its divisors is an integer number (7170176).

Almost surely, 2252945360 is an apocalyptic number.

252945360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252945360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430210560).

252945360 is an abundant number, since it is smaller than the sum of its proper divisors (607475760).

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

252945360 is a wasteful number, since it uses less digits than its factorization.

252945360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545 (or 4536 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 252945360 is about 15904.2560341564. The cubic root of 252945360 is about 632.4248198644.

The spelling of 252945360 in words is "two hundred fifty-two million, nine hundred forty-five thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 79 80 90 120 144 158 180 237 240 316 360 395 474 632 711 720 790 948 1185 1264 1422 1580 1896 2370 2844 3160 3555 3792 4447 4740 5688 6320 7110 8894 9480 11376 13341 14220 17788 18960 22235 26682 28440 35576 40023 44470 53364 56880 66705 71152 80046 88940 106728 133410 160092 177880 200115 213456 266820 320184 351313 355760 400230 533640 640368 702626 800460 1053939 1067280 1405252 1600920 1756565 2107878 2810504 3161817 3201840 3513130 4215756 5269695 5621008 6323634 7026260 8431512 10539390 12647268 14052520 15809085 16863024 21078780 25294536 28105040 31618170 42157560 50589072 63236340 84315120 126472680 252945360