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318213495061 = 71139719104047
BaseRepresentation
bin1001010000101110000…
…00001001100100010101
31010102100211211102221021
410220113000021210111
520203200123320221
6402104003321141
731663425036130
oct4502700114425
91112324742837
10318213495061
11112a54249760
12518090801b1
132401335cb17
141158a065217
15842668a041
hex4a17009915

318213495061 has 16 divisors (see below), whose sum is σ = 396747509760. Its totient is φ = 247949941680.

The previous prime is 318213495023. The next prime is 318213495161. The reversal of 318213495061 is 160594312813.

It is not a de Polignac number, because 318213495061 - 27 = 318213494933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318213494999 and 318213495017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318213495161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3006340 + ... + 3110386.

It is an arithmetic number, because the mean of its divisors is an integer number (24796719360).

Almost surely, 2318213495061 is an apocalyptic number.

It is an amenable number.

318213495061 is a deficient number, since it is larger than the sum of its proper divisors (78534014699).

318213495061 is a wasteful number, since it uses less digits than its factorization.

318213495061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143784.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 318213495061 in words is "three hundred eighteen billion, two hundred thirteen million, four hundred ninety-five thousand, sixty-one".

Divisors: 1 7 11 77 39719 104047 278033 436909 728329 1144517 3058363 8011619 4132642793 28928499551 45459070723 318213495061