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1312401322430 = 2511173122639319
BaseRepresentation
bin10011000110010001001…
…101101111000110111110
311122110112111121220110022
4103012101031233012332
5133000244214304210
62442524151012142
7163550346115352
oct23062115570676
94573474556408
101312401322430
1146664a3722a0
1219242866a052
13969b3444453
14477405d3462
1524212a1b155
hex1319136f1be

1312401322430 has 64 divisors (see below), whose sum is σ = 2816693637120. Its totient is φ = 434674905600.

The previous prime is 1312401322429. The next prime is 1312401322433. The reversal of 1312401322430 is 342231042131.

It is a super-2 number, since 2×13124013224302 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312401322430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312401322433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11261690 + ... + 11377629.

It is an arithmetic number, because the mean of its divisors is an integer number (44010838080).

Almost surely, 21312401322430 is an apocalyptic number.

1312401322430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312401322430 is an abundant number, since it is smaller than the sum of its proper divisors (1504292314690).

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

1312401322430 is a wasteful number, since it uses less digits than its factorization.

1312401322430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22639385.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1312401322430 its reverse (342231042131), we get a palindrome (1654632364561).

The spelling of 1312401322430 in words is "one trillion, three hundred twelve billion, four hundred one million, three hundred twenty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 11 17 22 31 34 55 62 85 110 155 170 187 310 341 374 527 682 935 1054 1705 1870 2635 3410 5270 5797 11594 28985 57970 22639319 45278638 113196595 226393190 249032509 384868423 498065018 701818889 769736846 1245162545 1403637778 1924342115 2490325090 3509094445 3848684230 4233552653 7018188890 7720007779 8467105306 11930921113 15440015558 21167763265 23861842226 38600038895 42335526530 59654605565 77200077790 119309211130 131240132243 262480264486 656200661215 1312401322430