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64424260 = 22519916187
BaseRepresentation
bin1111010111000…
…0100101000100
311111020002110201
43311300211010
5112443034020
610220500244
71411411555
oct365604504
9144202421
1064424260
113340299a
12196aa684
1310468984
1487b032c
1559c8a0a
hex3d70944

64424260 has 24 divisors (see below), whose sum is σ = 135979200. Its totient is φ = 25638624.

The previous prime is 64424251. The next prime is 64424273. The reversal of 64424260 is 6242446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4114 + ... + 12073.

It is an arithmetic number, because the mean of its divisors is an integer number (5665800).

Almost surely, 264424260 is an apocalyptic number.

It is an amenable number.

64424260 is an abundant number, since it is smaller than the sum of its proper divisors (71554940).

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

64424260 is a wasteful number, since it uses less digits than its factorization.

64424260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16395 (or 16393 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 64424260 is about 8026.4724505850. The cubic root of 64424260 is about 400.8819290737.

The spelling of 64424260 in words is "sixty-four million, four hundred twenty-four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 199 398 796 995 1990 3980 16187 32374 64748 80935 161870 323740 3221213 6442426 12884852 16106065 32212130 64424260