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129413360 = 2455692843
BaseRepresentation
bin1111011011010…
…11000011110000
3100000111212202102
413231223003300
5231112211420
620501435532
73130665266
oct755530360
9300455672
10129413360
116706119a
123740bba8
1320a7176b
141328a436
15b564a75
hex7b6b0f0

129413360 has 40 divisors (see below), whose sum is σ = 301520880. Its totient is φ = 51656192.

The previous prime is 129413321. The next prime is 129413369. The reversal of 129413360 is 63314921.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129413369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44099 + ... + 46941.

It is an arithmetic number, because the mean of its divisors is an integer number (7538022).

Almost surely, 2129413360 is an apocalyptic number.

129413360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129413360 is an abundant number, since it is smaller than the sum of its proper divisors (172107520).

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

129413360 is a wasteful number, since it uses less digits than its factorization.

129413360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425 (or 3419 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 129413360 is about 11375.9992967651. Note that the first 3 decimals coincide. The cubic root of 129413360 is about 505.8165530384.

The spelling of 129413360 in words is "one hundred twenty-nine million, four hundred thirteen thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 569 1138 2276 2843 2845 4552 5686 5690 9104 11372 11380 14215 22744 22760 28430 45488 45520 56860 113720 227440 1617667 3235334 6470668 8088335 12941336 16176670 25882672 32353340 64706680 129413360