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130649507 = 310942023
BaseRepresentation
bin1111100100110…
…00110110100011
3100002211200102122
413302120312203
5231421241012
620544134455
73144334232
oct762306643
9302750378
10130649507
11678259aa
123790742b
13210b5301
14134ccb19
15b70ae72
hex7c98da3

130649507 has 4 divisors (see below), whose sum is σ = 130694640. Its totient is φ = 130604376.

The previous prime is 130649503. The next prime is 130649509. The reversal of 130649507 is 705946031.

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 130649507 - 22 = 130649503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130649503) 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, 17903 + ... + 24120.

It is an arithmetic number, because the mean of its divisors is an integer number (32673660).

Almost surely, 2130649507 is an apocalyptic number.

130649507 is a deficient number, since it is larger than the sum of its proper divisors (45133).

130649507 is an equidigital number, since it uses as much as digits as its factorization.

130649507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45132.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 130649507 is about 11430.2015292820. The cubic root of 130649507 is about 507.4219598995.

The spelling of 130649507 in words is "one hundred thirty million, six hundred forty-nine thousand, five hundred seven".

Divisors: 1 3109 42023 130649507