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12791093 = 710091811
BaseRepresentation
bin110000110010…
…110100110101
3220001212002012
4300302310311
511233303333
61134054005
7213502550
oct60626465
926055065
1012791093
117247157
12434a305
13285b0c3
1419ad697
1511c9e48
hexc32d35

12791093 has 8 divisors (see below), whose sum is σ = 14640960. Its totient is φ = 10946880.

The previous prime is 12791087. The next prime is 12791113. The reversal of 12791093 is 39019721.

It is a happy number.

12791093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12791093 - 212 = 12786997 is a prime.

It is a super-2 number, since 2×127910932 = 327224120269298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791033) 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, 6158 + ... + 7968.

It is an arithmetic number, because the mean of its divisors is an integer number (1830120).

Almost surely, 212791093 is an apocalyptic number.

It is an amenable number.

12791093 is a deficient number, since it is larger than the sum of its proper divisors (1849867).

12791093 is a wasteful number, since it uses less digits than its factorization.

12791093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 12791093 is about 3576.4637562822. The cubic root of 12791093 is about 233.8671476625.

The spelling of 12791093 in words is "twelve million, seven hundred ninety-one thousand, ninety-three".

Divisors: 1 7 1009 1811 7063 12677 1827299 12791093