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13122415425 = 352736236899
BaseRepresentation
bin11000011100010100…
…00010101101000001
31020212112010202212010
430032022002231001
5203333314243200
610010042523133
7643120455630
oct141612025501
936775122763
1013122415425
115624296a29
1226628064a9
131311863172
148c6b13517
1551c083150
hex30e282b41

13122415425 has 48 divisors (see below), whose sum is σ = 24805555200. Its totient is φ = 5996293440.

The previous prime is 13122415421. The next prime is 13122415429. The reversal of 13122415425 is 52451422131.

It is an interprime number because it is at equal distance from previous prime (13122415421) and next prime (13122415429).

It is not a de Polignac number, because 13122415425 - 22 = 13122415421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13122415392 and 13122415401.

It is not an unprimeable number, because it can be changed into a prime (13122415421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1898626 + ... + 1905524.

It is an arithmetic number, because the mean of its divisors is an integer number (516782400).

Almost surely, 213122415425 is an apocalyptic number.

13122415425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13122415425 is a deficient number, since it is larger than the sum of its proper divisors (11683139775).

13122415425 is a wasteful number, since it uses less digits than its factorization.

13122415425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10542 (or 10537 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

Adding to 13122415425 its reverse (52451422131), we get a palindrome (65573837556).

The spelling of 13122415425 in words is "thirteen billion, one hundred twenty-two million, four hundred fifteen thousand, four hundred twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 3623 6899 10869 18115 20697 25361 34495 48293 54345 76083 90575 103485 126805 144879 172475 241465 271725 380415 517425 634025 724395 1207325 1902075 3621975 24995077 74985231 124975385 174965539 374926155 524896617 624876925 874827695 1874630775 2624483085 4374138475 13122415425