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130320342 = 23231233549
BaseRepresentation
bin1111100010010…
…00011111010110
3100002012221220100
413301020133112
5231330222332
620533114530
73141463455
oct761103726
9302187810
10130320342
1167620669
1237788a46
1320ccb539
1413444b9c
15b69367c
hex7c487d6

130320342 has 24 divisors (see below), whose sum is σ = 291470400. Its totient is φ = 42038640.

The previous prime is 130320319. The next prime is 130320343. The reversal of 130320342 is 243023031.

130320342 is a `hidden beast` number, since 1 + 3 + 0 + 320 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130320343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116217 + ... + 117332.

It is an arithmetic number, because the mean of its divisors is an integer number (12144600).

Almost surely, 2130320342 is an apocalyptic number.

130320342 is an abundant number, since it is smaller than the sum of its proper divisors (161150058).

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

130320342 is a wasteful number, since it uses less digits than its factorization.

130320342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233588 (or 233585 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 130320342 is about 11415.7935335219. The cubic root of 130320342 is about 506.9954599689.

Adding to 130320342 its reverse (243023031), we get a palindrome (373343373).

The spelling of 130320342 in words is "one hundred thirty million, three hundred twenty thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 31 62 93 186 279 558 233549 467098 700647 1401294 2101941 4203882 7240019 14480038 21720057 43440114 65160171 130320342