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130315304 = 237347491
BaseRepresentation
bin1111100010001…
…11010000101000
3100002012200222202
413301013100220
5231330042204
620533035332
73141443000
oct761072050
9302180882
10130315304
11676178a9
1237785b48
1320cc9162
1413443000
15b691e1e
hex7c47428

130315304 has 32 divisors (see below), whose sum is σ = 284952000. Its totient is φ = 55848240.

The previous prime is 130315301. The next prime is 130315321. The reversal of 130315304 is 403513031.

It is a happy number.

It is a super-2 number, since 2×1303153042 = 33964156913224832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130315301) 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, 21002 + ... + 26489.

It is an arithmetic number, because the mean of its divisors is an integer number (8904750).

Almost surely, 2130315304 is an apocalyptic number.

130315304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

130315304 is an abundant number, since it is smaller than the sum of its proper divisors (154636696).

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

130315304 is an equidigital number, since it uses as much as digits as its factorization.

130315304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47518 (or 47500 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 130315304 is about 11415.5728721777. The cubic root of 130315304 is about 506.9889266424.

Adding to 130315304 its reverse (403513031), we get a palindrome (533828335).

The spelling of 130315304 in words is "one hundred thirty million, three hundred fifteen thousand, three hundred four".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 343 392 686 1372 2744 47491 94982 189964 332437 379928 664874 1329748 2327059 2659496 4654118 9308236 16289413 18616472 32578826 65157652 130315304