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13012223330 = 257331775201
BaseRepresentation
bin11000001111001011…
…01100010101100010
31020120211210102201102
430013211230111202
5203122112121310
65551105034402
7640312034111
oct140745542542
936524712642
1013012223330
115578073a87
122631925a02
1312c4a91542
148b622bc78
155125688a5
hex30796c562

13012223330 has 16 divisors (see below), whose sum is σ = 23453968824. Its totient is φ = 5197785600.

The previous prime is 13012223299. The next prime is 13012223369. The reversal of 13012223330 is 3332221031.

It can be written as a sum of positive squares in 4 ways, for example, as 12696557041 + 315666289 = 112679^2 + 17767^2 .

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, 880271 + ... + 894930.

Almost surely, 213012223330 is an apocalyptic number.

13012223330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13012223330 is a deficient number, since it is larger than the sum of its proper divisors (10441745494).

13012223330 is a wasteful number, since it uses less digits than its factorization.

13012223330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775941.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13012223330 its reverse (3332221031), we get a palindrome (16344444361).

The spelling of 13012223330 in words is "thirteen billion, twelve million, two hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 733 1466 3665 7330 1775201 3550402 8876005 17752010 1301222333 2602444666 6506111665 13012223330