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13018274 = 229389577
BaseRepresentation
bin110001101010…
…010010100010
3220111101201022
4301222102202
511313041044
61143005442
7215440103
oct61522242
926441638
1013018274
117391905
124439882
13290a629
141a2c3aa
1512223ee
hexc6a4a2

13018274 has 16 divisors (see below), whose sum is σ = 20287800. Its totient is φ = 6257664.

The previous prime is 13018267. The next prime is 13018289. The reversal of 13018274 is 47281031.

It can be written as a sum of positive squares in 4 ways, for example, as 12652249 + 366025 = 3557^2 + 605^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22274 + ... + 22850.

Almost surely, 213018274 is an apocalyptic number.

13018274 is a deficient number, since it is larger than the sum of its proper divisors (7269526).

13018274 is a wasteful number, since it uses less digits than its factorization.

13018274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 13018274 is about 3608.0845333778. The cubic root of 13018274 is about 235.2435922910.

The spelling of 13018274 in words is "thirteen million, eighteen thousand, two hundred seventy-four".

Divisors: 1 2 29 58 389 577 778 1154 11281 16733 22562 33466 224453 448906 6509137 13018274