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252806064 = 24372332713
BaseRepresentation
bin11110001000110…
…00001110110000
3122121200212201120
433010120032300
51004204243224
641030302240
76156546630
oct1704301660
9577625646
10252806064
1111a77aa35
12707b7980
13404b59b4
142580a6c0
15172da779
hexf1183b0

252806064 has 80 divisors (see below), whose sum is σ = 778854912. Its totient is φ = 69087744.

The previous prime is 252806033. The next prime is 252806069. The reversal of 252806064 is 460608252.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (252806069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8629 + ... + 24084.

Almost surely, 2252806064 is an apocalyptic number.

252806064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

252806064 is an abundant number, since it is smaller than the sum of its proper divisors (526048848).

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

252806064 is a wasteful number, since it uses less digits than its factorization.

252806064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32754 (or 32748 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 252806064 is about 15899.8762259333. The cubic root of 252806064 is about 632.3087072730.

The spelling of 252806064 in words is "two hundred fifty-two million, eight hundred six thousand, sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 23 24 28 42 46 48 56 69 84 92 112 138 161 168 184 276 322 336 368 483 552 644 966 1104 1288 1932 2576 3864 7728 32713 65426 98139 130852 196278 228991 261704 392556 457982 523408 686973 752399 785112 915964 1373946 1504798 1570224 1831928 2257197 2747892 3009596 3663856 4514394 5266793 5495784 6019192 9028788 10533586 10991568 12038384 15800379 18057576 21067172 31600758 36115152 42134344 63201516 84268688 126403032 252806064