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129153900 = 22352430513
BaseRepresentation
bin1111011001010…
…11101101101100
3100000000200211210
413230223231230
5231030411100
620452114420
73125534661
oct754535554
9300020753
10129153900
11669a4267
1237305a10
13209b0635
141321da68
15b512c50
hex7b2bb6c

129153900 has 36 divisors (see below), whose sum is σ = 373686152. Its totient is φ = 34440960.

The previous prime is 129153877. The next prime is 129153917. The reversal of 129153900 is 9351921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214957 + ... + 215556.

Almost surely, 2129153900 is an apocalyptic number.

129153900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129153900 is an abundant number, since it is smaller than the sum of its proper divisors (244532252).

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

129153900 is a wasteful number, since it uses less digits than its factorization.

129153900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430530 (or 430523 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 129153900 is about 11364.5897418253. The cubic root of 129153900 is about 505.4782907768.

The spelling of 129153900 in words is "one hundred twenty-nine million, one hundred fifty-three thousand, nine hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 430513 861026 1291539 1722052 2152565 2583078 4305130 5166156 6457695 8610260 10762825 12915390 21525650 25830780 32288475 43051300 64576950 129153900