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1331031102 = 236133110987
BaseRepresentation
bin100111101010101…
…1110110000111110
310102202120101102020
41033111132300332
510211220443402
6340024341010
744661402102
oct11725366076
93382511366
101331031102
11623372405
12311914766
131829b138b
14c8abb902
157bcbe8bc
hex4f55ec3e

1331031102 has 32 divisors (see below), whose sum is σ = 2714123904. Its totient is φ = 435045600.

The previous prime is 1331031089. The next prime is 1331031109. The reversal of 1331031102 is 2011301331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331031109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115653 + ... + 126639.

It is an arithmetic number, because the mean of its divisors is an integer number (84816372).

Almost surely, 21331031102 is an apocalyptic number.

1331031102 is an abundant number, since it is smaller than the sum of its proper divisors (1383092802).

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

1331031102 is a wasteful number, since it uses less digits than its factorization.

1331031102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11384.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1331031102 is about 36483.2989462302. The cubic root of 1331031102 is about 1100.0085679773.

Adding to 1331031102 its reverse (2011301331), we get a palindrome (3342332433).

The spelling of 1331031102 in words is "one billion, three hundred thirty-one million, thirty-one thousand, one hundred two".

Divisors: 1 2 3 6 61 122 183 331 366 662 993 1986 10987 20191 21974 32961 40382 60573 65922 121146 670207 1340414 2010621 3636697 4021242 7273394 10910091 21820182 221838517 443677034 665515551 1331031102