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64948916 = 22191038297
BaseRepresentation
bin1111011111000…
…0101010110100
311112012202011102
43313300222310
5113111331131
610240025232
71416025304
oct367605264
9145182142
1064948916
113373109a
1219902218
13105c0716
1488a9604
155a7e1cb
hex3df0ab4

64948916 has 24 divisors (see below), whose sum is σ = 120818880. Its totient is φ = 30462912.

The previous prime is 64948913. The next prime is 64948921. The reversal of 64948916 is 61984946.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64948913) 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, 3680 + ... + 11976.

It is an arithmetic number, because the mean of its divisors is an integer number (5034120).

Almost surely, 264948916 is an apocalyptic number.

It is an amenable number.

64948916 is a deficient number, since it is larger than the sum of its proper divisors (55869964).

64948916 is a wasteful number, since it uses less digits than its factorization.

64948916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8423 (or 8421 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 64948916 is about 8059.0890304054. The cubic root of 64948916 is about 401.9672176101.

The spelling of 64948916 in words is "sixty-four million, nine hundred forty-eight thousand, nine hundred sixteen".

Divisors: 1 2 4 19 38 76 103 206 412 1957 3914 7828 8297 16594 33188 157643 315286 630572 854591 1709182 3418364 16237229 32474458 64948916