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64006996 = 2221137573
BaseRepresentation
bin1111010000101…
…0101101010100
311110102220002111
43310022231110
5112341210441
610203520404
71405023214
oct364125524
9143386074
1064006996
1133148449
1219529104
1310350a81
148702244
155945081
hex3d0ab54

64006996 has 12 divisors (see below), whose sum is σ = 112080052. Its totient is φ = 31984128.

The previous prime is 64006967. The next prime is 64007039. The reversal of 64006996 is 69960046.

64006996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31516996 + 32490000 = 5614^2 + 5700^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4666 + ... + 12238.

Almost surely, 264006996 is an apocalyptic number.

It is an amenable number.

64006996 is a deficient number, since it is larger than the sum of its proper divisors (48073056).

64006996 is a wasteful number, since it uses less digits than its factorization.

64006996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690 (or 9688 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 64006996 is about 8000.4372380514. The cubic root of 64006996 is about 400.0145744690.

The spelling of 64006996 in words is "sixty-four million, six thousand, nine hundred ninety-six".

Divisors: 1 2 4 2113 4226 7573 8452 15146 30292 16001749 32003498 64006996