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13351780464 = 2431125287463
BaseRepresentation
bin11000110111101010…
…00000000001110000
31021110111201201112120
430123311000001300
5204321023433324
610044514554240
7651604155441
oct143365000160
937414651476
1013351780464
115731806310
122707598980
13134a22c419
1490937b2c8
1553228d179
hex31bd40070

13351780464 has 40 divisors (see below), whose sum is σ = 37627746432. Its totient is φ = 4045993920.

The previous prime is 13351780459. The next prime is 13351780499. The reversal of 13351780464 is 46408715331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12643204 + ... + 12644259.

Almost surely, 213351780464 is an apocalyptic number.

It is an amenable number.

13351780464 is an abundant number, since it is smaller than the sum of its proper divisors (24275965968).

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

13351780464 is a wasteful number, since it uses less digits than its factorization.

13351780464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25287485 (or 25287479 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 13351780464 in words is "thirteen billion, three hundred fifty-one million, seven hundred eighty thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 25287463 50574926 75862389 101149852 151724778 202299704 278162093 303449556 404599408 556324186 606899112 834486279 1112648372 1213798224 1668972558 2225296744 3337945116 4450593488 6675890232 13351780464