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129494192 = 2431261077
BaseRepresentation
bin1111011011111…
…10110010110000
3100000122222122012
413231332302300
5231122303232
620503302052
73131453042
oct755766260
9300588565
10129494192
11671069a3
123744a928
1320a9c4a9
14132aba92
15b57d9b2
hex7b7ecb0

129494192 has 20 divisors (see below), whose sum is σ = 258989376. Its totient is φ = 62658240.

The previous prime is 129494147. The next prime is 129494201. The reversal of 129494192 is 291494921.

129494192 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 130043 + ... + 131034.

Almost surely, 2129494192 is an apocalyptic number.

It is an amenable number.

129494192 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129494192 is a wasteful number, since it uses less digits than its factorization.

129494192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261116 (or 261110 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 129494192 is about 11379.5514850103. The cubic root of 129494192 is about 505.9218426675.

The spelling of 129494192 in words is "one hundred twenty-nine million, four hundred ninety-four thousand, one hundred ninety-two".

Divisors: 1 2 4 8 16 31 62 124 248 496 261077 522154 1044308 2088616 4177232 8093387 16186774 32373548 64747096 129494192