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129090963 = 3129133331
BaseRepresentation
bin1111011000111…
…00010110010011
322222220111111210
413230130112103
5231021402323
620450511203
73125153331
oct754342623
9288814453
10129090963
1166960a51
1237295503
132098aab1
1413204b51
15b4ee293
hex7b1c593

129090963 has 8 divisors (see below), whose sum is σ = 172259776. Its totient is φ = 85991400.

The previous prime is 129090953. The next prime is 129090991. The reversal of 129090963 is 369090921.

It is a happy number.

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

It is not a de Polignac number, because 129090963 - 225 = 95536531 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129090953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12793 + ... + 20538.

It is an arithmetic number, because the mean of its divisors is an integer number (21532472).

Almost surely, 2129090963 is an apocalyptic number.

129090963 is a deficient number, since it is larger than the sum of its proper divisors (43168813).

129090963 is a wasteful number, since it uses less digits than its factorization.

129090963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34625.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 129090963 is about 11361.8204087197. The cubic root of 129090963 is about 505.3961705152.

The spelling of 129090963 in words is "one hundred twenty-nine million, ninety thousand, nine hundred sixty-three".

Divisors: 1 3 1291 3873 33331 99993 43030321 129090963