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129058097 = 718436871
BaseRepresentation
bin1111011000101…
…00010100110001
322222211211102112
413230110110301
5231014324342
620450055105
73124655450
oct754242461
9288754375
10129058097
1166939293
123727a495
1320978b4c
14131d6b97
15b4e4682
hex7b14531

129058097 has 4 divisors (see below), whose sum is σ = 147494976. Its totient is φ = 110621220.

The previous prime is 129058081. The next prime is 129058133. The reversal of 129058097 is 790850921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 790850921 = 7112978703.

It is a cyclic number.

It is not a de Polignac number, because 129058097 - 24 = 129058081 is a prime.

It is a super-2 number, since 2×1290580972 = 33311984802522818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129058057) 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, 9218429 + ... + 9218442.

It is an arithmetic number, because the mean of its divisors is an integer number (36873744).

Almost surely, 2129058097 is an apocalyptic number.

It is an amenable number.

129058097 is a deficient number, since it is larger than the sum of its proper divisors (18436879).

129058097 is an equidigital number, since it uses as much as digits as its factorization.

129058097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18436878.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 129058097 is about 11360.3739815202. The cubic root of 129058097 is about 505.3532763162.

The spelling of 129058097 in words is "one hundred twenty-nine million, fifty-eight thousand, ninety-seven".

Divisors: 1 7 18436871 129058097