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64078145412 = 22347113613733
BaseRepresentation
bin111011101011010110…
…101110011110000100
320010101201100001112220
4323223112232132010
52022213001123122
645234225012340
74425626151321
oct735326563604
9203351301486
1064078145412
11251a2496076
12105037840b0
13607260ca98
14315c349b48
151a007b225c
hexeeb5ae784

64078145412 has 24 divisors (see below), whose sum is σ = 152696858496. Its totient is φ = 20904926688.

The previous prime is 64078145401. The next prime is 64078145431. The reversal of 64078145412 is 21454187046.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56806303 + ... + 56807430.

It is an arithmetic number, because the mean of its divisors is an integer number (6362369104).

Almost surely, 264078145412 is an apocalyptic number.

It is an amenable number.

64078145412 is an abundant number, since it is smaller than the sum of its proper divisors (88618713084).

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

64078145412 is a wasteful number, since it uses less digits than its factorization.

64078145412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113613787 (or 113613785 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 64078145412 in words is "sixty-four billion, seventy-eight million, one hundred forty-five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 564 113613733 227227466 340841199 454454932 681682398 1363364796 5339845451 10679690902 16019536353 21359381804 32039072706 64078145412