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8012091 = 3192937131
BaseRepresentation
bin11110100100000100111011
3120002001112010
4132210010323
54022341331
6443421003
7125046603
oct36440473
916061463
108012091
11458266a
122824763
131876aa9
1410c7c03
15a83e46
hex7a413b

8012091 has 32 divisors (see below), whose sum is σ = 12038400. Its totient is φ = 4717440.

The previous prime is 8012087. The next prime is 8012107. The reversal of 8012091 is 1902108.

8012091 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8012091 - 22 = 8012087 is a prime.

8012091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8012021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61096 + ... + 61226.

It is an arithmetic number, because the mean of its divisors is an integer number (376200).

Almost surely, 28012091 is an apocalyptic number.

8012091 is a deficient number, since it is larger than the sum of its proper divisors (4026309).

8012091 is a wasteful number, since it uses less digits than its factorization.

8012091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 8012091 is about 2830.5637247729. The cubic root of 8012091 is about 200.1007076147.

Adding to 8012091 its reverse (1902108), we get a palindrome (9914199).

The spelling of 8012091 in words is "eight million, twelve thousand, ninety-one".

Divisors: 1 3 19 29 37 57 87 111 131 393 551 703 1073 1653 2109 2489 3219 3799 4847 7467 11397 14541 20387 61161 72181 92093 140563 216543 276279 421689 2670697 8012091