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129241702 = 2257251443
BaseRepresentation
bin1111011010000…
…01001001100110
3100000012011021201
413231001021212
5231041213302
620454033114
73126351652
oct755011146
9300164251
10129241702
1166a54227
123734879a
1320a115a5
1413243a62
15b52dc87
hex7b41266

129241702 has 8 divisors (see below), whose sum is σ = 194617656. Its totient is φ = 64369152.

The previous prime is 129241687. The next prime is 129241711. The reversal of 129241702 is 207142921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125208 + ... + 126235.

It is an arithmetic number, because the mean of its divisors is an integer number (24327207).

Almost surely, 2129241702 is an apocalyptic number.

129241702 is a deficient number, since it is larger than the sum of its proper divisors (65375954).

129241702 is a wasteful number, since it uses less digits than its factorization.

129241702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251702.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 129241702 is about 11368.4520494217. The cubic root of 129241702 is about 505.5928103573.

The spelling of 129241702 in words is "one hundred twenty-nine million, two hundred forty-one thousand, seven hundred two".

Divisors: 1 2 257 514 251443 502886 64620851 129241702