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12232023209 = 7171137091283
BaseRepresentation
bin10110110010001010…
…11101110010101001
31011120110201011100122
423121011131302221
5200022344220314
65341434413025
7612056324150
oct133105356251
934513634318
1012232023209
11520772709a
122454591175
1311cc251973
14840778597
154b8d0328e
hex2d915dca9

12232023209 has 32 divisors (see below), whose sum is σ = 14965482240. Its totient is φ = 9759117312.

The previous prime is 12232023179. The next prime is 12232023233. The reversal of 12232023209 is 90232023221.

It is not a de Polignac number, because 12232023209 - 28 = 12232022953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12232023239) 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, 9533282 + ... + 9534564.

It is an arithmetic number, because the mean of its divisors is an integer number (467671320).

Almost surely, 212232023209 is an apocalyptic number.

It is an amenable number.

12232023209 is a deficient number, since it is larger than the sum of its proper divisors (2733459031).

12232023209 is a wasteful number, since it uses less digits than its factorization.

12232023209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 12232023209 in words is "twelve billion, two hundred thirty-two million, twenty-three thousand, two hundred nine".

Divisors: 1 7 17 113 119 709 791 1283 1921 4963 8981 12053 13447 21811 80117 84371 144979 152677 560819 909647 1014853 1361989 2464643 6367529 9533923 15463999 17252501 102790111 108247993 719530777 1747431887 12232023209