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130303230 = 23531140111
BaseRepresentation
bin1111100010001…
…00010011111110
3100002012002102120
413301010103332
5231324200410
620532503410
73141362541
oct761042376
9302162376
10130303230
1167609822
123777ab66
1320cc3805
141343c858
15b68d570
hex7c444fe

130303230 has 32 divisors (see below), whose sum is σ = 322818048. Its totient is φ = 33626400.

The previous prime is 130303213. The next prime is 130303237. The reversal of 130303230 is 32303031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130303237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69126 + ... + 70985.

It is an arithmetic number, because the mean of its divisors is an integer number (10088064).

Almost surely, 2130303230 is an apocalyptic number.

130303230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130303230 is an abundant number, since it is smaller than the sum of its proper divisors (192514818).

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

130303230 is a wasteful number, since it uses less digits than its factorization.

130303230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140152.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 130303230 is about 11415.0440209401. The cubic root of 130303230 is about 506.9732682785.

Adding to 130303230 its reverse (32303031), we get a palindrome (162606261).

The spelling of 130303230 in words is "one hundred thirty million, three hundred three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 140111 280222 420333 700555 840666 1401110 2101665 4203330 4343441 8686882 13030323 21717205 26060646 43434410 65151615 130303230