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130130945 = 573718027
BaseRepresentation
bin1111100000110…
…10010000000001
3100001212100002122
413300122100001
5231303142240
620525054025
73140044340
oct760322001
9301770078
10130130945
116750133a
12376b7315
1320c63279
14133d5b57
15b6574b5
hex7c1a401

130130945 has 8 divisors (see below), whose sum is σ = 178465344. Its totient is φ = 89232624.

The previous prime is 130130929. The next prime is 130130947. The reversal of 130130945 is 549031031.

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

It is a cyclic number.

It is not a de Polignac number, because 130130945 - 24 = 130130929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130130947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1858979 + ... + 1859048.

It is an arithmetic number, because the mean of its divisors is an integer number (22308168).

Almost surely, 2130130945 is an apocalyptic number.

It is an amenable number.

130130945 is a deficient number, since it is larger than the sum of its proper divisors (48334399).

130130945 is an equidigital number, since it uses as much as digits as its factorization.

130130945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718039.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 130130945 is about 11407.4951238210. The cubic root of 130130945 is about 506.7497322163.

Adding to 130130945 its reverse (549031031), we get a palindrome (679161976).

The spelling of 130130945 in words is "one hundred thirty million, one hundred thirty thousand, nine hundred forty-five".

Divisors: 1 5 7 35 3718027 18590135 26026189 130130945