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13122768 = 2431914389
BaseRepresentation
bin110010000011…
…110011010000
3220200201001110
4302003303100
511324412033
61145133320
7216353541
oct62036320
926621043
1013122768
11745336a
12448a240
132946069
141a584c8
151243363
hexc83cd0

13122768 has 40 divisors (see below), whose sum is σ = 35687200. Its totient is φ = 4143744.

The previous prime is 13122763. The next prime is 13122817. The reversal of 13122768 is 86722131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6283 + ... + 8106.

It is an arithmetic number, because the mean of its divisors is an integer number (892180).

Almost surely, 213122768 is an apocalyptic number.

It is an amenable number.

13122768 is an abundant number, since it is smaller than the sum of its proper divisors (22564432).

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

13122768 is a wasteful number, since it uses less digits than its factorization.

13122768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14419 (or 14413 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 13122768 is about 3622.5361281842. The cubic root of 13122768 is about 235.8713269651.

Adding to 13122768 its reverse (86722131), we get a palindrome (99844899).

It can be divided in two parts, 13122 and 768, that multiplied together give a 9-th power (10077696 = 69).

The spelling of 13122768 in words is "thirteen million, one hundred twenty-two thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 14389 28778 43167 57556 86334 115112 172668 230224 273391 345336 546782 690672 820173 1093564 1640346 2187128 3280692 4374256 6561384 13122768