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130338390 = 23571347743
BaseRepresentation
bin1111100010011…
…00111001010110
3100002020212122210
413301030321112
5231331312030
620533334250
73141600210
oct761147126
9302225583
10130338390
1167633186
1237797386
1321006810
141344b5b0
15b698bb0
hex7c4ce56

130338390 has 64 divisors (see below), whose sum is σ = 385007616. Its totient is φ = 27499392.

The previous prime is 130338349. The next prime is 130338391. The reversal of 130338390 is 93833031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130338391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21142 + ... + 26601.

It is an arithmetic number, because the mean of its divisors is an integer number (6015744).

Almost surely, 2130338390 is an apocalyptic number.

130338390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130338390 is an abundant number, since it is smaller than the sum of its proper divisors (254669226).

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

130338390 is a wasteful number, since it uses less digits than its factorization.

130338390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47773.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 130338390 is about 11416.5839899683. The cubic root of 130338390 is about 507.0188634058.

It can be divided in two parts, 1303 and 38390, that added together give a palindrome (39693).

The spelling of 130338390 in words is "one hundred thirty million, three hundred thirty-eight thousand, three hundred ninety".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 47743 95486 143229 238715 286458 334201 477430 620659 668402 716145 1002603 1241318 1432290 1671005 1861977 2005206 3103295 3342010 3723954 4344613 5013015 6206590 8689226 9309885 10026030 13033839 18619770 21723065 26067678 43446130 65169195 130338390