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129104092 = 22132482771
BaseRepresentation
bin1111011000111…
…11100011011100
322222221011112001
413230133203130
5231022312332
620451052044
73125236525
oct754374334
9288834461
10129104092
116696a8a7
12372a1024
1320993a70
141320984c
15b5030e7
hex7b1f8dc

129104092 has 12 divisors (see below), whose sum is σ = 243311656. Its totient is φ = 59586480.

The previous prime is 129104089. The next prime is 129104099. The reversal of 129104092 is 290401921.

It is a happy number.

It is a super-2 number, since 2×1291040922 = 33335733142288928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 129104092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129104099) by changing a digit.

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, 1241334 + ... + 1241437.

Almost surely, 2129104092 is an apocalyptic number.

It is an amenable number.

129104092 is a deficient number, since it is larger than the sum of its proper divisors (114207564).

129104092 is a wasteful number, since it uses less digits than its factorization.

129104092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482788 (or 2482786 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 129104092 is about 11362.3981623599. The cubic root of 129104092 is about 505.4133034506.

The spelling of 129104092 in words is "one hundred twenty-nine million, one hundred four thousand, ninety-two".

Divisors: 1 2 4 13 26 52 2482771 4965542 9931084 32276023 64552046 129104092