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64295428 = 2217945521
BaseRepresentation
bin1111010101000…
…1001000000100
311110222112202011
43311101020010
5112424423203
610214024004
71410334141
oct365211004
9143875664
1064295428
113332511a
1219648004
1310422142
1487793c8
1559a076d
hex3d51204

64295428 has 12 divisors (see below), whose sum is σ = 119135772. Its totient is φ = 30256640.

The previous prime is 64295417. The next prime is 64295431. The reversal of 64295428 is 82459246.

It can be written as a sum of positive squares in 2 ways, for example, as 43665664 + 20629764 = 6608^2 + 4542^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472693 + ... + 472828.

It is an arithmetic number, because the mean of its divisors is an integer number (9927981).

Almost surely, 264295428 is an apocalyptic number.

64295428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

64295428 is a deficient number, since it is larger than the sum of its proper divisors (54840344).

64295428 is a wasteful number, since it uses less digits than its factorization.

64295428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945542 (or 945540 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 64295428 is about 8018.4429910052. The cubic root of 64295428 is about 400.6145303975.

The spelling of 64295428 in words is "sixty-four million, two hundred ninety-five thousand, four hundred twenty-eight".

Divisors: 1 2 4 17 34 68 945521 1891042 3782084 16073857 32147714 64295428