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129883000872 = 23329434339849
BaseRepresentation
bin111100011110110100…
…0010101000000101000
3110102020202210001222210
41320331220111000220
54112000022011442
6135400055245120
712245423202012
oct1707550250050
9412222701883
10129883000872
11500a0627a39
12212096797a0
13c32b88b791
146401b311b2
1535a295219c
hex1e3da15028

129883000872 has 64 divisors (see below), whose sum is σ = 343716120000. Its totient is φ = 40829289984.

The previous prime is 129883000861. The next prime is 129883000879. The reversal of 129883000872 is 278000388921.

It is not an unprimeable number, because it can be changed into a prime (129883000879) 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, 2139997 + ... + 2199852.

It is an arithmetic number, because the mean of its divisors is an integer number (5370564375).

Almost surely, 2129883000872 is an apocalyptic number.

129883000872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129883000872 is an abundant number, since it is smaller than the sum of its proper divisors (213833119128).

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

129883000872 is a wasteful number, since it uses less digits than its factorization.

129883000872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339930 (or 4339926 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 129883000872 in words is "one hundred twenty-nine billion, eight hundred eighty-three million, eight hundred seventy-two", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 12 24 29 43 58 86 87 116 129 172 174 232 258 344 348 516 696 1032 1247 2494 3741 4988 7482 9976 14964 29928 4339849 8679698 13019547 17359396 26039094 34718792 52078188 104156376 125855621 186613507 251711242 373227014 377566863 503422484 559840521 746454028 755133726 1006844968 1119681042 1492908056 1510267452 2239362084 3020534904 4478724168 5411791703 10823583406 16235375109 21647166812 32470750218 43294333624 64941500436 129883000872