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65388996 = 22328232207
BaseRepresentation
bin1111100101110…
…0000111000100
311120001002211200
43321130013010
5113214421441
610253302500
71422540321
oct371340704
9146032750
1065388996
1133a017a2
1219a94a30
1310715b1a
148981b48
155b197b6
hex3e5c1c4

65388996 has 36 divisors (see below), whose sum is σ = 165564672. Its totient is φ = 21759984.

The previous prime is 65388971. The next prime is 65389019. The reversal of 65388996 is 69988356.

65388996 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 (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28525 + ... + 30731.

Almost surely, 265388996 is an apocalyptic number.

It is an amenable number.

65388996 is an abundant number, since it is smaller than the sum of its proper divisors (100175676).

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

65388996 is a wasteful number, since it uses less digits than its factorization.

65388996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040 (or 3035 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 65388996 is about 8086.3462701025. The cubic root of 65388996 is about 402.8730561305.

The spelling of 65388996 in words is "sixty-five million, three hundred eighty-eight thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 823 1646 2207 2469 3292 4414 4938 6621 7407 8828 9876 13242 14814 19863 26484 29628 39726 79452 1816361 3632722 5449083 7265444 10898166 16347249 21796332 32694498 65388996