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78460648 = 2371401083
BaseRepresentation
bin1001010110100…
…11011011101000
312110122012202221
410223103123220
5130041220043
611441403424
71641622150
oct453233350
9173565687
1078460648
114031a712
1222339574
1313341826
14a5c5760
156d4c8ed
hex4ad36e8

78460648 has 16 divisors (see below), whose sum is σ = 168130080. Its totient is φ = 33625968.

The previous prime is 78460621. The next prime is 78460651. The reversal of 78460648 is 84606487.

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, 700486 + ... + 700597.

It is an arithmetic number, because the mean of its divisors is an integer number (10508130).

Almost surely, 278460648 is an apocalyptic number.

It is an amenable number.

78460648 is an abundant number, since it is smaller than the sum of its proper divisors (89669432).

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

78460648 is a wasteful number, since it uses less digits than its factorization.

78460648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401096 (or 1401092 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 78460648 is about 8857.8015331119. The cubic root of 78460648 is about 428.1053253466.

The spelling of 78460648 in words is "seventy-eight million, four hundred sixty thousand, six hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 56 1401083 2802166 5604332 9807581 11208664 19615162 39230324 78460648