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64086894 = 23223914897
BaseRepresentation
bin1111010001111…
…0001101101110
311110120221200200
43310132031232
5112401240034
610205334330
71405505154
oct364361556
9143527620
1064086894
11331a2483
12195673a6
131037b251
1487233d4
15595da99
hex3d1e36e

64086894 has 24 divisors (see below), whose sum is σ = 139445280. Its totient is φ = 21271488.

The previous prime is 64086887. The next prime is 64086917. The reversal of 64086894 is 49868046.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3147 + ... + 11750.

It is an arithmetic number, because the mean of its divisors is an integer number (5810220).

Almost surely, 264086894 is an apocalyptic number.

64086894 is an abundant number, since it is smaller than the sum of its proper divisors (75358386).

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

64086894 is a wasteful number, since it uses less digits than its factorization.

64086894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15144 (or 15141 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 64086894 is about 8005.4290328501. The cubic root of 64086894 is about 400.1809472995.

It can be divided in two parts, 64086 and 894, that added together give a triangular number (64980 = T360).

The spelling of 64086894 in words is "sixty-four million, eighty-six thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 9 18 239 478 717 1434 2151 4302 14897 29794 44691 89382 134073 268146 3560383 7120766 10681149 21362298 32043447 64086894