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1331969682 = 231999111053
BaseRepresentation
bin100111101100100…
…0011111010010010
310102211100001220110
41033121003322102
510211441012212
6340100422150
745002361351
oct11731037222
93384301813
101331969682
1162395359a
123120a7956
13182c4c654
14c8c83998
157be07a3c
hex4f643e92

1331969682 has 16 divisors (see below), whose sum is σ = 2665296000. Its totient is φ = 443763792.

The previous prime is 1331969657. The next prime is 1331969687. The reversal of 1331969682 is 2869691331.

1331969682 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13319696822 = 3548286467534362248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331969687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43533 + ... + 67520.

It is an arithmetic number, because the mean of its divisors is an integer number (166581000).

Almost surely, 21331969682 is an apocalyptic number.

1331969682 is an abundant number, since it is smaller than the sum of its proper divisors (1333326318).

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

1331969682 is a wasteful number, since it uses less digits than its factorization.

1331969682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113057.

The product of its digits is 419904, while the sum is 48.

The square root of 1331969682 is about 36496.1598253844. The cubic root of 1331969682 is about 1100.2670651825.

The spelling of 1331969682 in words is "one billion, three hundred thirty-one million, nine hundred sixty-nine thousand, six hundred eighty-two".

Divisors: 1 2 3 6 1999 3998 5997 11994 111053 222106 333159 666318 221994947 443989894 665984841 1331969682