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129266468930 = 2549787259639
BaseRepresentation
bin111100001100011100…
…0011100100001000010
3110100122210200000011102
41320120320130201002
54104214204001210
6135214553014402
712224225566544
oct1703070344102
9410583600142
10129266468930
114a904608405
12210770b4402
13c260c25191
146383cc3694
15356876aea5
hex1e18e1c842

129266468930 has 16 divisors (see below), whose sum is σ = 232685213760. Its totient is φ = 51705349872.

The previous prime is 129266468813. The next prime is 129266468999. The reversal of 129266468930 is 39864662921.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368051 + ... + 627689.

It is an arithmetic number, because the mean of its divisors is an integer number (14542825860).

Almost surely, 2129266468930 is an apocalyptic number.

129266468930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129266468930 is a deficient number, since it is larger than the sum of its proper divisors (103418744830).

129266468930 is a wasteful number, since it uses less digits than its factorization.

129266468930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309433.

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 129266468930 in words is "one hundred twenty-nine billion, two hundred sixty-six million, four hundred sixty-eight thousand, nine hundred thirty".

Divisors: 1 2 5 10 49787 99574 248935 259639 497870 519278 1298195 2596390 12926646893 25853293786 64633234465 129266468930