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1312140310 = 251397710331
BaseRepresentation
bin100111000110101…
…1010110000010110
310101110000122010021
41032031122300112
510141401442220
6334111415354
744342002645
oct11615326026
93343018107
101312140310
1161373a488
1230752455a
1317bac8ab0
14c63a135c
157a2dc4aa
hex4e35ac16

1312140310 has 32 divisors (see below), whose sum is σ = 2546383392. Its totient is φ = 483939840.

The previous prime is 1312140307. The next prime is 1312140311. The reversal of 1312140310 is 130412131.

It is a super-2 number, since 2×13121403102 = 3443424386253792200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312140311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121845 + ... + 132175.

It is an arithmetic number, because the mean of its divisors is an integer number (79574481).

Almost surely, 21312140310 is an apocalyptic number.

1312140310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312140310 is a deficient number, since it is larger than the sum of its proper divisors (1234243082).

1312140310 is a wasteful number, since it uses less digits than its factorization.

1312140310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11328.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1312140310 is about 36223.4773316975. The cubic root of 1312140310 is about 1094.7797587395.

Adding to 1312140310 its reverse (130412131), we get a palindrome (1442552441).

The spelling of 1312140310 in words is "one billion, three hundred twelve million, one hundred forty thousand, three hundred ten".

Divisors: 1 2 5 10 13 26 65 130 977 1954 4885 9770 10331 12701 20662 25402 51655 63505 103310 127010 134303 268606 671515 1343030 10093387 20186774 50466935 100933870 131214031 262428062 656070155 1312140310