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64269948 = 2235355829
BaseRepresentation
bin1111010100101…
…0111001111100
311110221020210110
43311022321330
5112423114243
610213310020
71410166641
oct365127174
9143836713
1064269948
1133307a66
1219635310
1310413672
14876ddc8
155997e33
hex3d4ae7c

64269948 has 12 divisors (see below), whose sum is σ = 149963240. Its totient is φ = 21423312.

The previous prime is 64269937. The next prime is 64269949. The reversal of 64269948 is 84996246.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 64269897 and 64269906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64269949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2677903 + ... + 2677926.

Almost surely, 264269948 is an apocalyptic number.

It is an amenable number.

64269948 is an abundant number, since it is smaller than the sum of its proper divisors (85693292).

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

64269948 is a wasteful number, since it uses less digits than its factorization.

64269948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5355836 (or 5355834 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 64269948 is about 8016.8539964253. The cubic root of 64269948 is about 400.5616028034.

The spelling of 64269948 in words is "sixty-four million, two hundred sixty-nine thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 5355829 10711658 16067487 21423316 32134974 64269948