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130103819 = 262149639
BaseRepresentation
bin1111100000100…
…11101000001011
3100001210221212222
413300103220023
5231301310234
620524324255
73136602266
oct760235013
9301727788
10130103819
1167492a1a
12376a368b
1320c53b11
14133c9cdd
15b64e42e
hex7c13a0b

130103819 has 4 divisors (see below), whose sum is σ = 130156080. Its totient is φ = 130051560.

The previous prime is 130103747. The next prime is 130103821. The reversal of 130103819 is 918301031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130103819 is a prime.

It is a super-2 number, since 2×1301038192 = 33854007436769522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130103219) 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, 22199 + ... + 27440.

It is an arithmetic number, because the mean of its divisors is an integer number (32539020).

Almost surely, 2130103819 is an apocalyptic number.

130103819 is a deficient number, since it is larger than the sum of its proper divisors (52261).

130103819 is an equidigital number, since it uses as much as digits as its factorization.

130103819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52260.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 130103819 is about 11406.3061067113. The cubic root of 130103819 is about 506.7145188434.

The spelling of 130103819 in words is "one hundred thirty million, one hundred three thousand, eight hundred nineteen".

Divisors: 1 2621 49639 130103819