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64536054 = 2311977819
BaseRepresentation
bin1111011000101…
…1110111110110
311111102202211020
43312023313312
5113010123204
610223122010
71412355522
oct366136766
9144382736
1064536054
1133479990
1219743306
13104a781b
1487dcd82
1559ebbd9
hex3d8bdf6

64536054 has 16 divisors (see below), whose sum is σ = 140806080. Its totient is φ = 19556360.

The previous prime is 64536053. The next prime is 64536061. The reversal of 64536054 is 45063546.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64536053) 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, 488844 + ... + 488975.

It is an arithmetic number, because the mean of its divisors is an integer number (8800380).

Almost surely, 264536054 is an apocalyptic number.

64536054 is an abundant number, since it is smaller than the sum of its proper divisors (76270026).

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

64536054 is a wasteful number, since it uses less digits than its factorization.

64536054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977835.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 64536054 is about 8033.4335125151. The cubic root of 64536054 is about 401.1136756057.

The spelling of 64536054 in words is "sixty-four million, five hundred thirty-six thousand, fifty-four".

Divisors: 1 2 3 6 11 22 33 66 977819 1955638 2933457 5866914 10756009 21512018 32268027 64536054