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1331373812260 = 22566568690613
BaseRepresentation
bin10011010111111100000…
…100000010101000100100
311201021111201201020201211
4103113330010002220210
5133303123143443020
62455342533201204
7165121453452652
oct23277404025044
94637451636654
101331373812260
114736a5898758
12196042490204
1398717c9c2ab
1448620249dd2
152497346e85a
hex135fc102a24

1331373812260 has 12 divisors (see below), whose sum is σ = 2795885005788. Its totient is φ = 532549524896.

The previous prime is 1331373812231. The next prime is 1331373812267. The reversal of 1331373812260 is 622183731331.

It can be written as a sum of positive squares in 2 ways, for example, as 327614285376 + 1003759526884 = 572376^2 + 1001878^2 .

It is not an unprimeable number, because it can be changed into a prime (1331373812267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33284345287 + ... + 33284345326.

It is an arithmetic number, because the mean of its divisors is an integer number (232990417149).

Almost surely, 21331373812260 is an apocalyptic number.

1331373812260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331373812260 is an abundant number, since it is smaller than the sum of its proper divisors (1464511193528).

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

1331373812260 is a wasteful number, since it uses less digits than its factorization.

1331373812260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66568690622 (or 66568690620 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 1331373812260 in words is "one trillion, three hundred thirty-one billion, three hundred seventy-three million, eight hundred twelve thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 66568690613 133137381226 266274762452 332843453065 665686906130 1331373812260