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129164130 = 23251784421
BaseRepresentation
bin1111011001011…
…10001101100010
3100000001012212200
413230232031202
5231031223010
620452234030
73125606544
oct754561542
9300035780
10129164130
1166a00a17
123730b916
13209b51a4
1413223694
15b515cc0
hex7b2e362

129164130 has 48 divisors (see below), whose sum is σ = 355585464. Its totient is φ = 32417280.

The previous prime is 129164117. The next prime is 129164149. The reversal of 129164130 is 31461921.

129164130 is a `hidden beast` number, since 12 + 9 + 1 + 641 + 3 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 129072321 + 91809 = 11361^2 + 303^2 .

It is a junction number, because it is equal to n+sod(n) for n = 129164094 and 129164103.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40681 + ... + 43740.

Almost surely, 2129164130 is an apocalyptic number.

129164130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129164130 is an abundant number, since it is smaller than the sum of its proper divisors (226421334).

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

129164130 is a wasteful number, since it uses less digits than its factorization.

129164130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84451 (or 84448 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 129164130 is about 11365.0398151524. The cubic root of 129164130 is about 505.4916363704.

The spelling of 129164130 in words is "one hundred twenty-nine million, one hundred sixty-four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 510 765 1530 84421 168842 253263 422105 506526 759789 844210 1266315 1435157 1519578 2532630 2870314 3798945 4305471 7175785 7597890 8610942 12916413 14351570 21527355 25832826 43054710 64582065 129164130