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13015452814 = 2721310499739
BaseRepresentation
bin11000001111100100…
…00000110010001110
31020121001212111201221
430013302000302032
5203123423442224
65551302153554
7640351344400
oct140762006216
936531774657
1013015452814
11557997a381
122632a228ba
1312c5652490
148b682cb70
155129a56e4
hex307c80c8e

13015452814 has 48 divisors (see below), whose sum is σ = 24483438000. Its totient is φ = 5143533696.

The previous prime is 13015452811. The next prime is 13015452823. The reversal of 13015452814 is 41825451031.

It is a self number, because there is not a number n which added to its sum of digits gives 13015452814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13015452811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1331557 + ... + 1341295.

It is an arithmetic number, because the mean of its divisors is an integer number (510071625).

Almost surely, 213015452814 is an apocalyptic number.

13015452814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13015452814 is a deficient number, since it is larger than the sum of its proper divisors (11467985186).

13015452814 is a wasteful number, since it uses less digits than its factorization.

13015452814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10817 (or 10810 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 13015452814 in words is "thirteen billion, fifteen million, four hundred fifty-two thousand, eight hundred fourteen".

Divisors: 1 2 7 13 14 26 49 91 98 182 637 1049 1274 2098 7343 9739 13637 14686 19478 27274 51401 68173 95459 102802 126607 136346 190918 253214 477211 668213 886249 954422 1336426 1772498 6203743 10216211 12407486 20432422 71513477 132810743 143026954 265621486 500594339 929675201 1001188678 1859350402 6507726407 13015452814