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1331135060 = 225193502987
BaseRepresentation
bin100111101010111…
…1000001001010100
310102202202200000112
41033111320021110
510211232310220
6340030502152
744662314143
oct11725701124
93382680015
101331135060
11623433522
12311964958
13182a197a8
14c8b0775a
157bce05c5
hex4f578254

1331135060 has 24 divisors (see below), whose sum is σ = 2942509920. Its totient is φ = 504429984.

The previous prime is 1331135011. The next prime is 1331135129. The reversal of 1331135060 is 605311331.

It is a happy number.

It is a super-2 number, since 2×13311350602 = 3543841095922407200, which contains 22 as substring.

It is a congruent number.

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, 1751114 + ... + 1751873.

It is an arithmetic number, because the mean of its divisors is an integer number (122604580).

Almost surely, 21331135060 is an apocalyptic number.

1331135060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331135060 is an abundant number, since it is smaller than the sum of its proper divisors (1611374860).

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

1331135060 is a wasteful number, since it uses less digits than its factorization.

1331135060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503015 (or 3503013 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 1331135060 is about 36484.7236525097. The cubic root of 1331135060 is about 1100.0372053532.

Adding to 1331135060 its reverse (605311331), we get a palindrome (1936446391).

The spelling of 1331135060 in words is "one billion, three hundred thirty-one million, one hundred thirty-five thousand, sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 3502987 7005974 14011948 17514935 35029870 66556753 70059740 133113506 266227012 332783765 665567530 1331135060