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130254026 = 279303859
BaseRepresentation
bin1111100001110…
…00010011001010
3100002002120221012
413300320103022
5231321112101
620531443522
73141066230
oct760702312
9302076835
10130254026
1167585861
12377565a2
1320ca72b6
1413428950
15b67dbbb
hex7c384ca

130254026 has 8 divisors (see below), whose sum is σ = 223292640. Its totient is φ = 55823148.

The previous prime is 130254001. The next prime is 130254031. The reversal of 130254026 is 620452031.

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

It is a super-2 number, since 2×1302540262 = 33932222578417352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130253992 and 130254010.

It is an unprimeable number.

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, 4651916 + ... + 4651943.

It is an arithmetic number, because the mean of its divisors is an integer number (27911580).

Almost surely, 2130254026 is an apocalyptic number.

130254026 is a deficient number, since it is larger than the sum of its proper divisors (93038614).

130254026 is an equidigital number, since it uses as much as digits as its factorization.

130254026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9303868.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 130254026 is about 11412.8885914128. Note that the first 3 decimals coincide. The cubic root of 130254026 is about 506.9094472634.

The spelling of 130254026 in words is "one hundred thirty million, two hundred fifty-four thousand, twenty-six".

Divisors: 1 2 7 14 9303859 18607718 65127013 130254026