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13270540420 = 225719345451
BaseRepresentation
bin11000101101111110…
…00110000010000100
31021020211212022011001
430112333012002010
5204134224243140
610032453423044
7646566506134
oct142677060204
937224768131
1013270540420
11569a968485
1226a433aa84
1313364567a7
148dc670ac4
1552a091e9a
hex316fc6084

13270540420 has 24 divisors (see below), whose sum is σ = 28260646848. Its totient is φ = 5233452000.

The previous prime is 13270540399. The next prime is 13270540421. The reversal of 13270540420 is 2404507231.

It is a super-2 number, since 2×132705404202 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13270540421) 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, 4671306 + ... + 4674145.

It is an arithmetic number, because the mean of its divisors is an integer number (1177526952).

Almost surely, 213270540420 is an apocalyptic number.

13270540420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13270540420 is an abundant number, since it is smaller than the sum of its proper divisors (14990106428).

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

13270540420 is a wasteful number, since it uses less digits than its factorization.

13270540420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9345531 (or 9345529 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The spelling of 13270540420 in words is "thirteen billion, two hundred seventy million, five hundred forty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 9345451 18690902 37381804 46727255 93454510 186909020 663527021 1327054042 2654108084 3317635105 6635270210 13270540420