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130310236 = 22717318831
BaseRepresentation
bin1111100010001…
…10000001011100
3100002012110001001
413301012001130
5231324411421
620533000044
73141422140
oct761060134
9302173031
10130310236
1167614011
1237783024
1320cc6a64
1413441220
15b690691
hex7c4605c

130310236 has 48 divisors (see below), whose sum is σ = 284884992. Its totient is φ = 50860800.

The previous prime is 130310233. The next prime is 130310237. The reversal of 130310236 is 632013031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130310231) 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, 10341 + ... + 19171.

It is an arithmetic number, because the mean of its divisors is an integer number (5935104).

Almost surely, 2130310236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130310236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142442496).

130310236 is an abundant number, since it is smaller than the sum of its proper divisors (154574756).

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

130310236 is a wasteful number, since it uses less digits than its factorization.

130310236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8890 (or 8888 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 130310236 is about 11415.3508925482. The cubic root of 130310236 is about 506.9823542417.

Adding to 130310236 its reverse (632013031), we get a palindrome (762323267).

The spelling of 130310236 in words is "one hundred thirty million, three hundred ten thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 17 28 31 34 62 68 119 124 217 238 434 476 527 868 1054 2108 3689 7378 8831 14756 17662 35324 61817 123634 150127 247268 273761 300254 547522 600508 1050889 1095044 1916327 2101778 3832654 4203556 4653937 7665308 9307874 18615748 32577559 65155118 130310236