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130130646 = 2371305471
BaseRepresentation
bin1111100000110…
…10001011010110
3100001212022200120
413300122023112
5231303140041
620525052410
73140043432
oct760321326
9301768616
10130130646
1167501098
12376b7106
1320c630a9
14133d59c2
15b657366
hex7c1a2d6

130130646 has 16 divisors (see below), whose sum is σ = 263927808. Its totient is φ = 42765800.

The previous prime is 130130621. The next prime is 130130647. The reversal of 130130646 is 646031031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130130647) 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, 152310 + ... + 153161.

It is an arithmetic number, because the mean of its divisors is an integer number (16495488).

Almost surely, 2130130646 is an apocalyptic number.

130130646 is an abundant number, since it is smaller than the sum of its proper divisors (133797162).

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

130130646 is a wasteful number, since it uses less digits than its factorization.

130130646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305547.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 130130646 is about 11407.4820183948. The cubic root of 130130646 is about 506.7493440988.

Adding to 130130646 its reverse (646031031), we get a palindrome (776161677).

The spelling of 130130646 in words is "one hundred thirty million, one hundred thirty thousand, six hundred forty-six".

Divisors: 1 2 3 6 71 142 213 426 305471 610942 916413 1832826 21688441 43376882 65065323 130130646