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13491126 = 23211611117
BaseRepresentation
bin110011011101…
…101110110110
3221101102100100
4303131232312
511423204001
61201054530
7222446505
oct63355666
927342310
1013491126
1176850a0
124627446
132a4491c
141b1283c
1512b7586
hexcddbb6

13491126 has 48 divisors (see below), whose sum is σ = 32439888. Its totient is φ = 4017600.

The previous prime is 13491113. The next prime is 13491131. The reversal of 13491126 is 62119431.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13491126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11520 + ... + 12636.

It is an arithmetic number, because the mean of its divisors is an integer number (675831).

Almost surely, 213491126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13491126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16219944).

13491126 is an abundant number, since it is smaller than the sum of its proper divisors (18948762).

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

13491126 is a wasteful number, since it uses less digits than its factorization.

13491126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1194 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 13491126 is about 3673.0268172176. The cubic root of 13491126 is about 238.0579737782.

The spelling of 13491126 in words is "thirteen million, four hundred ninety-one thousand, one hundred twenty-six".

Divisors: 1 2 3 6 9 11 18 22 33 61 66 99 122 183 198 366 549 671 1098 1117 1342 2013 2234 3351 4026 6039 6702 10053 12078 12287 20106 24574 36861 68137 73722 110583 136274 204411 221166 408822 613233 749507 1226466 1499014 2248521 4497042 6745563 13491126