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130131654 = 2323942983
BaseRepresentation
bin1111100000110…
…10011011000110
3100001212101001220
413300122123012
5231303203104
620525101210
73140046402
oct760323306
9301771056
10130131654
1167501924
12376b7806
1320c636a3
14133d6102
15b6577d9
hex7c1a6c6

130131654 has 16 divisors (see below), whose sum is σ = 271579392. Its totient is φ = 41491208.

The previous prime is 130131653. The next prime is 130131679. The reversal of 130131654 is 456131031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130131653) 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, 471354 + ... + 471629.

It is an arithmetic number, because the mean of its divisors is an integer number (16973712).

Almost surely, 2130131654 is an apocalyptic number.

130131654 is an abundant number, since it is smaller than the sum of its proper divisors (141447738).

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

130131654 is a wasteful number, since it uses less digits than its factorization.

130131654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943011.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 130131654 is about 11407.5261998384. The cubic root of 130131654 is about 506.7506525327.

Adding to 130131654 its reverse (456131031), we get a palindrome (586262685).

The spelling of 130131654 in words is "one hundred thirty million, one hundred thirty-one thousand, six hundred fifty-four".

Divisors: 1 2 3 6 23 46 69 138 942983 1885966 2828949 5657898 21688609 43377218 65065827 130131654