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129514244 = 2241789721
BaseRepresentation
bin1111011100000…
…11101100000100
3100000201000010212
413232003230010
5231123423434
620503534552
73131565356
oct756035404
9300630125
10129514244
116711aa72
123745a458
1320aa8662
14132b50d6
15b5848ce
hex7b83b04

129514244 has 12 divisors (see below), whose sum is σ = 232178268. Its totient is φ = 63177600.

The previous prime is 129514213. The next prime is 129514247. The reversal of 129514244 is 442415921.

It can be written as a sum of positive squares in 2 ways, for example, as 46922500 + 82591744 = 6850^2 + 9088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 129514244.

It is not an unprimeable number, because it can be changed into a prime (129514247) by changing a digit.

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, 394697 + ... + 395024.

It is an arithmetic number, because the mean of its divisors is an integer number (19348189).

Almost surely, 2129514244 is an apocalyptic number.

It is an amenable number.

129514244 is a deficient number, since it is larger than the sum of its proper divisors (102664024).

129514244 is a wasteful number, since it uses less digits than its factorization.

129514244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789766 (or 789764 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 129514244 is about 11380.4325049622. The cubic root of 129514244 is about 505.9479550901.

The spelling of 129514244 in words is "one hundred twenty-nine million, five hundred fourteen thousand, two hundred forty-four".

Divisors: 1 2 4 41 82 164 789721 1579442 3158884 32378561 64757122 129514244