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13126464 = 2632131753
BaseRepresentation
bin110010000100…
…101101000000
3220200220010100
4302010231000
511330021324
61145202400
7216400401
oct62045500
926626110
1013126464
11745611a
124490400
132947950
141a599a8
1512444c9
hexc84b40

13126464 has 84 divisors (see below), whose sum is σ = 40541956. Its totient is φ = 4036608.

The previous prime is 13126447. The next prime is 13126469. The reversal of 13126464 is 46462131.

13126464 is a `hidden beast` number, since 1 + 3 + 12 + 646 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1016064 + 12110400 = 1008^2 + 3480^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13126469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6612 + ... + 8364.

Almost surely, 213126464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13126464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20270978).

13126464 is an abundant number, since it is smaller than the sum of its proper divisors (27415492).

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

13126464 is a wasteful number, since it uses less digits than its factorization.

13126464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 1771 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 13126464 is about 3623.0462321091. The cubic root of 13126464 is about 235.8934691075.

Adding to 13126464 its reverse (46462131), we get a palindrome (59588595).

It can be divided in two parts, 131264 and 64, that added together give a triangular number (131328 = T512).

The spelling of 13126464 in words is "thirteen million, one hundred twenty-six thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 104 117 144 156 192 208 234 288 312 416 468 576 624 832 936 1248 1753 1872 2496 3506 3744 5259 7012 7488 10518 14024 15777 21036 22789 28048 31554 42072 45578 56096 63108 68367 84144 91156 112192 126216 136734 168288 182312 205101 252432 273468 336576 364624 410202 504864 546936 729248 820404 1009728 1093872 1458496 1640808 2187744 3281616 4375488 6563232 13126464