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68384960 = 265730529
BaseRepresentation
bin1000001001101…
…11100011000000
311202200022112022
410010313203000
5120001304320
610441421012
71460156030
oct404674300
9152608468
1068384960
11356686a6
121aa9a768
1311224697
1491218c0
15600c325
hex41378c0

68384960 has 56 divisors (see below), whose sum is σ = 186110880. Its totient is φ = 23445504.

The previous prime is 68384959. The next prime is 68384963. The reversal of 68384960 is 6948386.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (68384963) 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, 13025 + ... + 17504.

Almost surely, 268384960 is an apocalyptic number.

It is an amenable number.

68384960 is an abundant number, since it is smaller than the sum of its proper divisors (117725920).

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

68384960 is a wasteful number, since it uses less digits than its factorization.

68384960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30553 (or 30543 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 68384960 is about 8269.5199376989. The cubic root of 68384960 is about 408.9342935996.

The spelling of 68384960 in words is "sixty-eight million, three hundred eighty-four thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 320 448 560 1120 2240 30529 61058 122116 152645 213703 244232 305290 427406 488464 610580 854812 976928 1068515 1221160 1709624 1953856 2137030 2442320 3419248 4274060 4884640 6838496 8548120 9769280 13676992 17096240 34192480 68384960