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130930146 = 23210966733
BaseRepresentation
bin1111100110111…
…01010111100010
3100010100221101200
413303131113202
5232004231041
620554142030
73146613354
oct763352742
9303327350
10130930146
11679a7836
1237a21916
1321182c79
14135630d4
15b7641b6
hex7cdd5e2

130930146 has 24 divisors (see below), whose sum is σ = 286288860. Its totient is φ = 43242336.

The previous prime is 130930139. The next prime is 130930147. The reversal of 130930146 is 641039031.

It can be written as a sum of positive squares in 2 ways, for example, as 106812225 + 24117921 = 10335^2 + 4911^2 .

It is not an unprimeable number, because it can be changed into a prime (130930147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31405 + ... + 35328.

Almost surely, 2130930146 is an apocalyptic number.

130930146 is an abundant number, since it is smaller than the sum of its proper divisors (155358714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130930146 is a wasteful number, since it uses less digits than its factorization.

130930146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66850 (or 66847 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 130930146 is about 11442.4711491880. The cubic root of 130930146 is about 507.7850191885.

Adding to 130930146 its reverse (641039031), we get a palindrome (771969177).

The spelling of 130930146 in words is "one hundred thirty million, nine hundred thirty thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 109 218 327 654 981 1962 66733 133466 200199 400398 600597 1201194 7273897 14547794 21821691 43643382 65465073 130930146