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13121303302 = 247277503929
BaseRepresentation
bin11000011100001011…
…10011001100000110
31020212110001021022101
430032011303030012
5203333023201202
610010003022314
7643105144402
oct141605631406
936773037271
1013121303302
1156236a7418
12266236a99a
131311563bc3
148c6904102
1551be13887
hex30e173306

13121303302 has 16 divisors (see below), whose sum is σ = 20173325760. Its totient is φ = 6397869888.

The previous prime is 13121303297. The next prime is 13121303311. The reversal of 13121303302 is 20330312131.

It is a super-2 number, since 2×131213033022 (a number of 21 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 13121303302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225927 + ... + 278002.

It is an arithmetic number, because the mean of its divisors is an integer number (1260832860).

Almost surely, 213121303302 is an apocalyptic number.

13121303302 is a deficient number, since it is larger than the sum of its proper divisors (7052022458).

13121303302 is a wasteful number, since it uses less digits than its factorization.

13121303302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504255.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13121303302 its reverse (20330312131), we get a palindrome (33451615433).

The spelling of 13121303302 in words is "thirteen billion, one hundred twenty-one million, three hundred three thousand, three hundred two".

Divisors: 1 2 47 94 277 554 13019 26038 503929 1007858 23684663 47369326 139588333 279176666 6560651651 13121303302