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129713555 = 5197913109
BaseRepresentation
bin1111011101101…
…00010110010011
3100001002010112202
413232310112103
5231201313210
620512113415
73133355426
oct756642623
9301063482
10129713555
1167246794
123753586b
1320b482aa
14133279bd
15b5c39a5
hex7bb4593

129713555 has 8 divisors (see below), whose sum is σ = 155746800. Its totient is φ = 103710496.

The previous prime is 129713543. The next prime is 129713599. The reversal of 129713555 is 555317921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129713555 - 214 = 129697171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3341 + ... + 16449.

It is an arithmetic number, because the mean of its divisors is an integer number (19468350).

Almost surely, 2129713555 is an apocalyptic number.

129713555 is a deficient number, since it is larger than the sum of its proper divisors (26033245).

129713555 is a wasteful number, since it uses less digits than its factorization.

129713555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15093.

The product of its digits is 47250, while the sum is 38.

The square root of 129713555 is about 11389.1858795965. The cubic root of 129713555 is about 506.2073584975.

The spelling of 129713555 in words is "one hundred twenty-nine million, seven hundred thirteen thousand, five hundred fifty-five".

Divisors: 1 5 1979 9895 13109 65545 25942711 129713555