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130904847 = 3231469193
BaseRepresentation
bin1111100110101…
…11001100001111
3100010022122200200
413303113030033
5232002423342
620553424543
73146446533
oct763271417
9303278620
10130904847
116798a827
1237a0b153
13211745b8
1413557bc3
15b75b94c
hex7cd730f

130904847 has 12 divisors (see below), whose sum is σ = 195184704. Its totient is φ = 84454560.

The previous prime is 130904843. The next prime is 130904881. The reversal of 130904847 is 748409031.

It is a happy number.

It is not a de Polignac number, because 130904847 - 22 = 130904843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130904843) 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 11 ways as a sum of consecutive naturals, for example, 234318 + ... + 234875.

It is an arithmetic number, because the mean of its divisors is an integer number (16265392).

Almost surely, 2130904847 is an apocalyptic number.

130904847 is a deficient number, since it is larger than the sum of its proper divisors (64279857).

130904847 is a wasteful number, since it uses less digits than its factorization.

130904847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469230 (or 469227 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 130904847 is about 11441.3656090521. The cubic root of 130904847 is about 507.7523114659.

The spelling of 130904847 in words is "one hundred thirty million, nine hundred four thousand, eight hundred forty-seven".

Divisors: 1 3 9 31 93 279 469193 1407579 4222737 14544983 43634949 130904847