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129916354 = 2199449727
BaseRepresentation
bin1111011111001…
…01110111000010
3100001110102201211
413233211313002
5231224310404
620520320334
73135161611
oct757456702
9301412654
10129916354
1167375097
12376130aa
1320bb96a9
141337b878
15b613b04
hex7be5dc2

129916354 has 16 divisors (see below), whose sum is σ = 196560000. Its totient is φ = 64399104.

The previous prime is 129916333. The next prime is 129916393. The reversal of 129916354 is 453619921.

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 7 ways as a sum of consecutive naturals, for example, 178339 + ... + 179065.

It is an arithmetic number, because the mean of its divisors is an integer number (12285000).

Almost surely, 2129916354 is an apocalyptic number.

129916354 is a deficient number, since it is larger than the sum of its proper divisors (66643646).

129916354 is a wasteful number, since it uses less digits than its factorization.

129916354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377.

The product of its digits is 58320, while the sum is 40.

The square root of 129916354 is about 11398.0855410021. The cubic root of 129916354 is about 506.4710289432.

The spelling of 129916354 in words is "one hundred twenty-nine million, nine hundred sixteen thousand, three hundred fifty-four".

Divisors: 1 2 199 398 449 727 898 1454 89351 144673 178702 289346 326423 652846 64958177 129916354