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130167661 = 1341244217
BaseRepresentation
bin1111100001000…
…11001101101101
3100001221012110111
413300203031231
5231310331121
620525540021
73140256361
oct760431555
9301835414
10130167661
1167526988
1237714611
1320c76bb0
14134052a1
15b6632e1
hex7c2336d

130167661 has 8 divisors (see below), whose sum is σ = 143600184. Its totient is φ = 117223680.

The previous prime is 130167659. The next prime is 130167671. The reversal of 130167661 is 166761031.

It can be written as a sum of positive squares in 4 ways, for example, as 4862025 + 125305636 = 2205^2 + 11194^2 .

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 130167661 - 21 = 130167659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130167671) 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, 121576 + ... + 122641.

It is an arithmetic number, because the mean of its divisors is an integer number (17950023).

Almost surely, 2130167661 is an apocalyptic number.

It is an amenable number.

130167661 is a deficient number, since it is larger than the sum of its proper divisors (13432523).

130167661 is a wasteful number, since it uses less digits than its factorization.

130167661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244271.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 130167661 is about 11409.1043031432. The cubic root of 130167661 is about 506.7973869679.

The spelling of 130167661 in words is "one hundred thirty million, one hundred sixty-seven thousand, six hundred sixty-one".

Divisors: 1 13 41 533 244217 3174821 10012897 130167661