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130103210 = 2517765313
BaseRepresentation
bin1111100000100…
…11011110101010
3100001210221001102
413300103132222
5231301300320
620524321402
73136600436
oct760233652
9301727042
10130103210
1167492516
12376a3262
1320c53763
14133c99c6
15b64e175
hex7c137aa

130103210 has 16 divisors (see below), whose sum is σ = 247961736. Its totient is φ = 48979968.

The previous prime is 130103173. The next prime is 130103219. The reversal of 130103210 is 12301031.

It can be written as a sum of positive squares in 4 ways, for example, as 104509729 + 25593481 = 10223^2 + 5059^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130103191 and 130103200.

It is not an unprimeable number, because it can be changed into a prime (130103219) 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, 382487 + ... + 382826.

Almost surely, 2130103210 is an apocalyptic number.

130103210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130103210 is a deficient number, since it is larger than the sum of its proper divisors (117858526).

130103210 is a wasteful number, since it uses less digits than its factorization.

130103210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765337.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 130103210 is about 11406.2794109210. The cubic root of 130103210 is about 506.7137282194.

Adding to 130103210 its reverse (12301031), we get a palindrome (142404241).

The spelling of 130103210 in words is "one hundred thirty million, one hundred three thousand, two hundred ten".

Divisors: 1 2 5 10 17 34 85 170 765313 1530626 3826565 7653130 13010321 26020642 65051605 130103210