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12842347492 = 22134347122201
BaseRepresentation
bin10111111010111011…
…01010101111100100
31020011000010211212201
423331131222233210
5202300120104432
65522200024244
7633150103222
oct137535525744
936130124781
1012842347492
1154a0196827
1225a4a62084
1312988238b0
1489b84bb12
155026aeee7
hex2fd76abe4

12842347492 has 48 divisors (see below), whose sum is σ = 25292881152. Its totient is φ = 5666169600.

The previous prime is 12842347439. The next prime is 12842347499. The reversal of 12842347492 is 29474324821.

It is not an unprimeable number, because it can be changed into a prime (12842347499) 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, 43992 + ... + 166192.

It is an arithmetic number, because the mean of its divisors is an integer number (526935024).

Almost surely, 212842347492 is an apocalyptic number.

It is an amenable number.

12842347492 is a deficient number, since it is larger than the sum of its proper divisors (12450533660).

12842347492 is a wasteful number, since it uses less digits than its factorization.

12842347492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122308 (or 122306 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The spelling of 12842347492 in words is "twelve billion, eight hundred forty-two million, three hundred forty-seven thousand, four hundred ninety-two".

Divisors: 1 2 4 13 26 43 47 52 86 94 172 188 559 611 1118 1222 2021 2236 2444 4042 8084 26273 52546 105092 122201 244402 488804 1588613 3177226 5254643 5743447 6354452 10509286 11486894 21018572 22973788 68310359 74664811 136620718 149329622 246968221 273241436 298659244 493936442 987872884 3210586873 6421173746 12842347492