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64678060 = 2253233903
BaseRepresentation
bin1111011010111…
…0100010101100
311111200222121201
43312232202230
5113024144220
610230135244
71413516526
oct366564254
9144628551
1064678060
1133566647
12197b1524
1310527355
148838a16
155a28d0a
hex3dae8ac

64678060 has 12 divisors (see below), whose sum is σ = 135823968. Its totient is φ = 25871216.

The previous prime is 64678057. The next prime is 64678087. The reversal of 64678060 is 6087646.

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, 1616932 + ... + 1616971.

It is an arithmetic number, because the mean of its divisors is an integer number (11318664).

Almost surely, 264678060 is an apocalyptic number.

It is an amenable number.

64678060 is an abundant number, since it is smaller than the sum of its proper divisors (71145908).

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

64678060 is a wasteful number, since it uses less digits than its factorization.

64678060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233912 (or 3233910 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 64678060 is about 8042.2670933015. The cubic root of 64678060 is about 401.4076653843.

The spelling of 64678060 in words is "sixty-four million, six hundred seventy-eight thousand, sixty".

Divisors: 1 2 4 5 10 20 3233903 6467806 12935612 16169515 32339030 64678060