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64967952 = 2437193357
BaseRepresentation
bin1111011111010…
…1010100010000
311112020201021110
43313311110100
5113112433302
610240253320
71416134640
oct367652420
9145221243
1064967952
1133744425
1219911240
13105c929a
1488b2520
155a84b6c
hex3df5510

64967952 has 40 divisors (see below), whose sum is σ = 191811136. Its totient is φ = 18562176.

The previous prime is 64967951. The next prime is 64967963. The reversal of 64967952 is 25976946.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (64967951) 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, 96343 + ... + 97014.

Almost surely, 264967952 is an apocalyptic number.

It is an amenable number.

64967952 is an abundant number, since it is smaller than the sum of its proper divisors (126843184).

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

64967952 is a wasteful number, since it uses less digits than its factorization.

64967952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193375 (or 193369 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 64967952 is about 8060.2699706648. The cubic root of 64967952 is about 402.0064848834.

The spelling of 64967952 in words is "sixty-four million, nine hundred sixty-seven thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 193357 386714 580071 773428 1160142 1353499 1546856 2320284 2706998 3093712 4060497 4640568 5413996 8120994 9281136 10827992 16241988 21655984 32483976 64967952