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129482808 = 233713101587
BaseRepresentation
bin1111011011111…
…00000000111000
3100000122102000120
413231330000320
5231121422213
620503133240
73131404620
oct755740070
9300572016
10129482808
11670a9394
1237444220
1320a97260
14132a7880
15b57a423
hex7b7c038

129482808 has 128 divisors (see below), whose sum is σ = 403038720. Its totient is φ = 33753600.

The previous prime is 129482803. The next prime is 129482831. The reversal of 129482808 is 808284921.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 129482808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129482803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220291 + ... + 220877.

It is an arithmetic number, because the mean of its divisors is an integer number (3148740).

Almost surely, 2129482808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129482808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201519360).

129482808 is an abundant number, since it is smaller than the sum of its proper divisors (273555912).

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

129482808 is a wasteful number, since it uses less digits than its factorization.

129482808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 129482808 is about 11379.0512785557. The cubic root of 129482808 is about 505.9070168210.

The spelling of 129482808 in words is "one hundred twenty-nine million, four hundred eighty-two thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 52 56 78 84 91 101 104 156 168 182 202 273 303 312 364 404 546 587 606 707 728 808 1092 1174 1212 1313 1414 1761 2121 2184 2348 2424 2626 2828 3522 3939 4109 4242 4696 5252 5656 7044 7631 7878 8218 8484 9191 10504 12327 14088 15262 15756 16436 16968 18382 22893 24654 27573 30524 31512 32872 36764 45786 49308 53417 55146 59287 61048 73528 91572 98616 106834 110292 118574 160251 177861 183144 213668 220584 237148 320502 355722 415009 427336 474296 641004 711444 770731 830018 1245027 1282008 1422888 1541462 1660036 2312193 2490054 3082924 3320072 4624386 4980108 5395117 6165848 9248772 9960216 10790234 16185351 18497544 21580468 32370702 43160936 64741404 129482808