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64293208 = 2374492557
BaseRepresentation
bin1111010101000…
…0100101011000
311110222102200221
43311100211120
5112424340313
610214005424
71410324520
oct365204530
9143872627
1064293208
1133323491
1219646874
1310421125
148778680
15599ec8d
hex3d50958

64293208 has 32 divisors (see below), whose sum is σ = 138132000. Its totient is φ = 27482112.

The previous prime is 64293179. The next prime is 64293223. The reversal of 64293208 is 80239246.

It is a congruent number.

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, 23866 + ... + 26422.

It is an arithmetic number, because the mean of its divisors is an integer number (4316625).

Almost surely, 264293208 is an apocalyptic number.

It is an amenable number.

64293208 is an abundant number, since it is smaller than the sum of its proper divisors (73838792).

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

64293208 is a wasteful number, since it uses less digits than its factorization.

64293208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019 (or 3015 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 64293208 is about 8018.3045589451. The cubic root of 64293208 is about 400.6099195227.

The spelling of 64293208 in words is "sixty-four million, two hundred ninety-three thousand, two hundred eight".

Divisors: 1 2 4 7 8 14 28 56 449 898 1796 2557 3143 3592 5114 6286 10228 12572 17899 20456 25144 35798 71596 143192 1148093 2296186 4592372 8036651 9184744 16073302 32146604 64293208