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12867830140 = 22511471244471
BaseRepresentation
bin10111111101111101…
…11000000101111100
31020012210002111111111
423332332320011330
5202323131031030
65524510131404
7633606515524
oct137676700574
936183074444
1012867830140
115503611270
1225b14b0b64
1312a0ba6699
148a0da2684
15504a4562a
hex2fefb817c

12867830140 has 48 divisors (see below), whose sum is σ = 30106266624. Its totient is φ = 4579649600.

The previous prime is 12867830113. The next prime is 12867830201. The reversal of 12867830140 is 4103876821.

It is a junction number, because it is equal to n+sod(n) for n = 12867830093 and 12867830102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611896 + ... + 632575.

It is an arithmetic number, because the mean of its divisors is an integer number (627213888).

Almost surely, 212867830140 is an apocalyptic number.

12867830140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12867830140 is an abundant number, since it is smaller than the sum of its proper divisors (17238436484).

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

12867830140 is a wasteful number, since it uses less digits than its factorization.

12867830140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244538 (or 1244536 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 12867830140 in words is "twelve billion, eight hundred sixty-seven million, eight hundred thirty thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 47 55 94 110 188 220 235 470 517 940 1034 2068 2585 5170 10340 1244471 2488942 4977884 6222355 12444710 13689181 24889420 27378362 54756724 58490137 68445905 116980274 136891810 233960548 273783620 292450685 584901370 643391507 1169802740 1286783014 2573566028 3216957535 6433915070 12867830140