Search a number
-
+
1312150025430 = 23451619938303
BaseRepresentation
bin10011000110000010001…
…111000111010011010110
311122102212222202200210000
4103012002033013103112
5132444240401303210
62442443212512130
7163541205122136
oct23060217072326
94572788680700
101312150025430
11466530533122
1219237847b646
13969733695ba
144771909aac6
15241ea92cac0
hex131823c74d6

1312150025430 has 40 divisors (see below), whose sum is σ = 3528225626112. Its totient is φ = 349906673232.

The previous prime is 1312150025399. The next prime is 1312150025443. The reversal of 1312150025430 is 345200512131.

1312150025430 is a `hidden beast` number, since 1 + 3 + 121 + 500 + 2 + 5 + 4 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1312150025394 and 1312150025403.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 809968342 + ... + 809969961.

Almost surely, 21312150025430 is an apocalyptic number.

1312150025430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312150025430 is an abundant number, since it is smaller than the sum of its proper divisors (2216075600682).

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

1312150025430 is a wasteful number, since it uses less digits than its factorization.

1312150025430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619938322 (or 1619938313 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 1312150025430 its reverse (345200512131), we get a palindrome (1657350537561).

The spelling of 1312150025430 in words is "one trillion, three hundred twelve billion, one hundred fifty million, twenty-five thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 1619938303 3239876606 4859814909 8099691515 9719629818 14579444727 16199383030 24299074545 29158889454 43738334181 48598149090 72897223635 87476668362 131215002543 145794447270 218691670905 262430005086 437383341810 656075012715 1312150025430