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130279226 = 2711845969
BaseRepresentation
bin1111100001111…
…10011100111010
3100002010212111112
413300332130322
5231322413401
620532200322
73141232550
oct760763472
9302125445
10130279226
11675a2790
12377690a2
1320cb58cc
1413433bd0
15b6863bb
hex7c3e73a

130279226 has 16 divisors (see below), whose sum is σ = 243639360. Its totient is φ = 50758080.

The previous prime is 130279213. The next prime is 130279229. The reversal of 130279226 is 622972031.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130279192 and 130279201.

It is not an unprimeable number, because it can be changed into a prime (130279229) 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 7 ways as a sum of consecutive naturals, for example, 422831 + ... + 423138.

It is an arithmetic number, because the mean of its divisors is an integer number (15227460).

Almost surely, 2130279226 is an apocalyptic number.

130279226 is a deficient number, since it is larger than the sum of its proper divisors (113360134).

130279226 is a wasteful number, since it uses less digits than its factorization.

130279226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845989.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 130279226 is about 11413.9925530027. The cubic root of 130279226 is about 506.9421354261.

The spelling of 130279226 in words is "one hundred thirty million, two hundred seventy-nine thousand, two hundred twenty-six".

Divisors: 1 2 7 11 14 22 77 154 845969 1691938 5921783 9305659 11843566 18611318 65139613 130279226