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12004122870 = 2325314302553
BaseRepresentation
bin10110010111000000…
…00110000011110110
31010222120212121212100
423023200012003312
5144041023412440
65303054002530
7603321234525
oct131340060366
933876777770
1012004122870
115100018203
1223b01a6446
131193c792ac
1481c3b24bc
154a3cd7230
hex2cb8060f6

12004122870 has 48 divisors (see below), whose sum is σ = 32217524352. Its totient is φ = 3097837440.

The previous prime is 12004122869. The next prime is 12004122877. The reversal of 12004122870 is 7822140021.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004122877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2148487 + ... + 2154066.

It is an arithmetic number, because the mean of its divisors is an integer number (671198424).

Almost surely, 212004122870 is an apocalyptic number.

12004122870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12004122870 is an abundant number, since it is smaller than the sum of its proper divisors (20213401482).

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

12004122870 is a wasteful number, since it uses less digits than its factorization.

12004122870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302597 (or 4302594 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

Adding to 12004122870 its reverse (7822140021), we get a palindrome (19826262891).

The spelling of 12004122870 in words is "twelve billion, four million, one hundred twenty-two thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 279 310 465 558 930 1395 2790 4302553 8605106 12907659 21512765 25815318 38722977 43025530 64538295 77445954 129076590 133379143 193614885 266758286 387229770 400137429 666895715 800274858 1200412287 1333791430 2000687145 2400824574 4001374290 6002061435 12004122870