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13505492 = 22711133373
BaseRepresentation
bin110011100001…
…001111010100
3221102011001102
4303201033110
511424133432
61201245232
7222536420
oct63411724
927364042
1013505492
117694970
124633818
132a4b320
141b17b80
1512bb962
hexce13d4

13505492 has 48 divisors (see below), whose sum is σ = 31742592. Its totient is φ = 4855680.

The previous prime is 13505449. The next prime is 13505501. The reversal of 13505492 is 29450531.

13505492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2318 + ... + 5690.

It is an arithmetic number, because the mean of its divisors is an integer number (661304).

Almost surely, 213505492 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 13505492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15871296).

13505492 is an abundant number, since it is smaller than the sum of its proper divisors (18237100).

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

13505492 is a wasteful number, since it uses less digits than its factorization.

13505492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408 (or 3406 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 13505492 is about 3674.9819047174. The cubic root of 13505492 is about 238.1424423309.

It can be divided in two parts, 13 and 505492, that added together give a palindrome (505505).

The spelling of 13505492 in words is "thirteen million, five hundred five thousand, four hundred ninety-two".

Divisors: 1 2 4 7 11 13 14 22 26 28 44 52 77 91 143 154 182 286 308 364 572 1001 2002 3373 4004 6746 13492 23611 37103 43849 47222 74206 87698 94444 148412 175396 259721 306943 482339 519442 613886 964678 1038884 1227772 1929356 3376373 6752746 13505492