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130811330 = 25131006241
BaseRepresentation
bin1111100110000…
…00010111000010
3100010010220102002
413303000113002
5231441430310
620551424002
73145610066
oct763002702
9303126362
10130811330
1167926541
1237985002
1321140b70
1413531aa6
15b73dda5
hex7cc05c2

130811330 has 16 divisors (see below), whose sum is σ = 253572984. Its totient is φ = 48299520.

The previous prime is 130811321. The next prime is 130811357. The reversal of 130811330 is 33118031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 115842169 + 14969161 = 10763^2 + 3869^2 .

It is a super-2 number, since 2×1308113302 = 34223208112737800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502991 + ... + 503250.

Almost surely, 2130811330 is an apocalyptic number.

130811330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130811330 is a deficient number, since it is larger than the sum of its proper divisors (122761654).

130811330 is a wasteful number, since it uses less digits than its factorization.

130811330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006261.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 130811330 is about 11437.2780852789. The cubic root of 130811330 is about 507.6313717510.

Adding to 130811330 its reverse (33118031), we get a palindrome (163929361).

It can be divided in two parts, 130 and 811330, that multiplied together give a square (105472900 = 102702).

The spelling of 130811330 in words is "one hundred thirty million, eight hundred eleven thousand, three hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1006241 2012482 5031205 10062410 13081133 26162266 65405665 130811330