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64290902 = 2132472727
BaseRepresentation
bin1111010101000…
…0000001010110
311110222022112112
43311100001112
5112424302102
610213551022
71410315014
oct365200126
9143868475
1064290902
1133321785
1219645472
1310420070
1487778b4
15599e252
hex3d50056

64290902 has 8 divisors (see below), whose sum is σ = 103854576. Its totient is φ = 29672712.

The previous prime is 64290859. The next prime is 64290913. The reversal of 64290902 is 20909246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236338 + ... + 1236389.

It is an arithmetic number, because the mean of its divisors is an integer number (12981822).

Almost surely, 264290902 is an apocalyptic number.

64290902 is a deficient number, since it is larger than the sum of its proper divisors (39563674).

64290902 is a wasteful number, since it uses less digits than its factorization.

64290902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472742.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 64290902 is about 8018.1607616710. The cubic root of 64290902 is about 400.6051299162.

The spelling of 64290902 in words is "sixty-four million, two hundred ninety thousand, nine hundred two".

Divisors: 1 2 13 26 2472727 4945454 32145451 64290902