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13815470220 = 2235230257837
BaseRepresentation
bin11001101110111011…
…10101100010001100
31022122211020121022020
430313131311202030
5211243230021340
610202521250140
7666234362556
oct146735654214
938584217266
1013815470220
11594a522292
122816933950
1313c2310266
14950ba04d6
1555cd329d0
hex33777588c

13815470220 has 24 divisors (see below), whose sum is σ = 38683316784. Its totient is φ = 3684125376.

The previous prime is 13815470213. The next prime is 13815470231. The reversal of 13815470220 is 2207451831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115128859 + ... + 115128978.

It is an arithmetic number, because the mean of its divisors is an integer number (1611804866).

Almost surely, 213815470220 is an apocalyptic number.

13815470220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13815470220 is an abundant number, since it is smaller than the sum of its proper divisors (24867846564).

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

13815470220 is a wasteful number, since it uses less digits than its factorization.

13815470220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230257849 (or 230257847 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 13815470220 in words is "thirteen billion, eight hundred fifteen million, four hundred seventy thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 230257837 460515674 690773511 921031348 1151289185 1381547022 2302578370 2763094044 3453867555 4605156740 6907735110 13815470220