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65068512 = 2532332909
BaseRepresentation
bin1111100000110…
…1110111100000
311112102211012220
43320031313200
5113124143022
610242351040
71420034055
oct370156740
9145384186
1065068512
1133802a33
121995b480
1310632ca2
1488db02c
155aa485c
hex3e0dde0

65068512 has 48 divisors (see below), whose sum is σ = 171596880. Its totient is φ = 21588992.

The previous prime is 65068481. The next prime is 65068513. The reversal of 65068512 is 21586056.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×650685122 = 8467822507788288, which contains 22 as substring.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65068513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20914 + ... + 23822.

It is an arithmetic number, because the mean of its divisors is an integer number (3574935).

Almost surely, 265068512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65068512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85798440).

65068512 is an abundant number, since it is smaller than the sum of its proper divisors (106528368).

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

65068512 is a wasteful number, since it uses less digits than its factorization.

65068512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 65068512 is about 8066.5055631296. The cubic root of 65068512 is about 402.2137918773.

The spelling of 65068512 in words is "sixty-five million, sixty-eight thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 233 466 699 932 1398 1864 2796 2909 3728 5592 5818 7456 8727 11184 11636 17454 22368 23272 34908 46544 69816 93088 139632 279264 677797 1355594 2033391 2711188 4066782 5422376 8133564 10844752 16267128 21689504 32534256 65068512