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64948313 = 1729472803
BaseRepresentation
bin1111011111000…
…0100001011001
311112012201100002
43313300201121
5113111321223
610240022345
71416023453
oct367604131
9145181302
1064948313
11337306a1
12199019b5
13105c0371
1488a92d3
155a7de28
hex3df0859

64948313 has 16 divisors (see below), whose sum is σ = 72679680. Its totient is φ = 57743616.

The previous prime is 64948291. The next prime is 64948363. The reversal of 64948313 is 31384946.

It is a cyclic number.

It is not a de Polignac number, because 64948313 - 26 = 64948249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64948363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21770 + ... + 24572.

It is an arithmetic number, because the mean of its divisors is an integer number (4542480).

Almost surely, 264948313 is an apocalyptic number.

It is an amenable number.

64948313 is a deficient number, since it is larger than the sum of its proper divisors (7731367).

64948313 is a wasteful number, since it uses less digits than its factorization.

64948313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896.

The product of its digits is 62208, while the sum is 38.

The square root of 64948313 is about 8059.0516191423. The cubic root of 64948313 is about 401.9659736222.

The spelling of 64948313 in words is "sixty-four million, nine hundred forty-eight thousand, three hundred thirteen".

Divisors: 1 17 29 47 493 799 1363 2803 23171 47651 81287 131741 1381879 2239597 3820489 64948313