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13281614983 = 7213233129243
BaseRepresentation
bin11000101111010010…
…10101110010000111
31021021121200221121001
430113221111302013
5204200043134413
610033531034131
7650062602400
oct142751256207
937247627531
1013281614983
1156a6141a0a
1226a7b9b947
1313388334a0
148ddd149a7
1552b02d4dd
hex317a55c87

13281614983 has 48 divisors (see below), whose sum is σ = 17922594816. Its totient is φ = 9727058880.

The previous prime is 13281614971. The next prime is 13281614987. The reversal of 13281614983 is 38941618231.

It is not a de Polignac number, because 13281614983 - 213 = 13281606791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13281614987) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 439560 + ... + 468802.

It is an arithmetic number, because the mean of its divisors is an integer number (373387392).

Almost surely, 213281614983 is an apocalyptic number.

13281614983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13281614983 is a deficient number, since it is larger than the sum of its proper divisors (4640979833).

13281614983 is a wasteful number, since it uses less digits than its factorization.

13281614983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29324 (or 29317 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The spelling of 13281614983 in words is "thirteen billion, two hundred eighty-one million, six hundred fourteen thousand, nine hundred eighty-three".

Divisors: 1 7 13 23 31 49 91 161 217 299 403 637 713 1127 1519 2093 2821 4991 9269 14651 19747 29243 34937 64883 204701 380159 454181 672589 906533 1432907 2661113 4708123 6345731 8743657 11784929 18627791 20850259 32956861 44420117 61205599 82494503 145951813 271053367 428439193 577461521 1021662691 1897373569 13281614983