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130863643 = 734917807
BaseRepresentation
bin1111100110011…
…01001000011011
3100010020120011121
413303031020123
5232000114033
620552510111
73146215441
oct763151033
9303216147
10130863643
1167961879
12379ab337
132115b911
1413546b91
15b74e62d
hex7ccd21b

130863643 has 4 divisors (see below), whose sum is σ = 130888800. Its totient is φ = 130838488.

The previous prime is 130863641. The next prime is 130863647. The reversal of 130863643 is 346368031.

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

It is a cyclic number.

It is not a de Polignac number, because 130863643 - 21 = 130863641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130863599 and 130863608.

It is not an unprimeable number, because it can be changed into a prime (130863641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555 + ... + 16252.

It is an arithmetic number, because the mean of its divisors is an integer number (32722200).

Almost surely, 2130863643 is an apocalyptic number.

130863643 is a deficient number, since it is larger than the sum of its proper divisors (25157).

130863643 is an equidigital number, since it uses as much as digits as its factorization.

130863643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25156.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 130863643 is about 11439.5648081559. The cubic root of 130863643 is about 507.6990319981.

The spelling of 130863643 in words is "one hundred thirty million, eight hundred sixty-three thousand, six hundred forty-three".

Divisors: 1 7349 17807 130863643