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1312102302 = 23728115503
BaseRepresentation
bin100111000110101…
…0001011110011110
310101102221200222120
41032031101132132
510141344233202
6334110523410
744341454100
oct11615213636
93342850876
101312102302
11613713975
12307506566
1317bab46c4
14c6391570
157a2d10bc
hex4e35179e

1312102302 has 48 divisors (see below), whose sum is σ = 3056965632. Its totient is φ = 374356080.

The previous prime is 1312102283. The next prime is 1312102307. The reversal of 1312102302 is 2032012131.

It is a super-2 number, since 2×13121023022 = 3443224901827398408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312102307) 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 23 ways as a sum of consecutive naturals, for example, 235683 + ... + 241185.

It is an arithmetic number, because the mean of its divisors is an integer number (63686784).

Almost surely, 21312102302 is an apocalyptic number.

1312102302 is an abundant number, since it is smaller than the sum of its proper divisors (1744863330).

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

1312102302 is a wasteful number, since it uses less digits than its factorization.

1312102302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333 (or 6326 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1312102302 is about 36222.9526957701. The cubic root of 1312102302 is about 1094.7691880227.

Adding to 1312102302 its reverse (2032012131), we get a palindrome (3344114433).

The spelling of 1312102302 in words is "one billion, three hundred twelve million, one hundred two thousand, three hundred two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 811 1622 2433 4866 5503 5677 11006 11354 16509 17031 33018 34062 38521 39739 77042 79478 115563 119217 231126 238434 269647 539294 808941 1617882 4462933 8925866 13388799 26777598 31240531 62481062 93721593 187443186 218683717 437367434 656051151 1312102302