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13193874 = 233733347
BaseRepresentation
bin110010010101…
…001010010010
3220211022121000
4302111022102
511334200444
61150442430
7220101051
oct62251222
926738530
1013193874
1174a1831
124503416
13296c535
141a76398
151259469
hexc95292

13193874 has 32 divisors (see below), whose sum is σ = 29730240. Its totient is φ = 4336416.

The previous prime is 13193863. The next prime is 13193893. The reversal of 13193874 is 47839131.

It is a happy number.

It is a super-2 number, since 2×131938742 = 348156622255752, which contains 22 as substring.

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, 2269 + ... + 5615.

It is an arithmetic number, because the mean of its divisors is an integer number (929070).

Almost surely, 213193874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13193874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14865120).

13193874 is an abundant number, since it is smaller than the sum of its proper divisors (16536366).

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

13193874 is a wasteful number, since it uses less digits than its factorization.

13193874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431 (or 3425 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 13193874 is about 3632.3372640767. The cubic root of 13193874 is about 236.2965844142.

The spelling of 13193874 in words is "thirteen million, one hundred ninety-three thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 9 18 27 54 73 146 219 438 657 1314 1971 3347 3942 6694 10041 20082 30123 60246 90369 180738 244331 488662 732993 1465986 2198979 4397958 6596937 13193874