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12136452251 = 7211233726459
BaseRepresentation
bin10110100110110001…
…11001000010011011
31011022210212122122112
423103120321002123
5144323412433001
65324142142535
7606516066500
oct132330710233
934283778575
1012136452251
115168790230
122428581a4b
1311b54cc0c1
14831bbb4a7
154b0725cbb
hex2d363909b

12136452251 has 48 divisors (see below), whose sum is σ = 16505959680. Its totient is φ = 8800989120.

The previous prime is 12136452247. The next prime is 12136452253. The reversal of 12136452251 is 15225463121.

12136452251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12136452251 - 22 = 12136452247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12136452253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 445460 + ... + 471918.

It is an arithmetic number, because the mean of its divisors is an integer number (343874160).

Almost surely, 212136452251 is an apocalyptic number.

12136452251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12136452251 is a deficient number, since it is larger than the sum of its proper divisors (4369507429).

12136452251 is a wasteful number, since it uses less digits than its factorization.

12136452251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26544 (or 26537 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The spelling of 12136452251 in words is "twelve billion, one hundred thirty-six million, four hundred fifty-two thousand, two hundred fifty-one".

Divisors: 1 7 11 23 37 49 77 161 253 259 407 539 851 1127 1771 1813 2849 5957 9361 12397 19943 26459 41699 65527 185213 291049 458689 608557 978983 1296491 2037343 4259899 6694127 6852881 10768813 14261401 22516609 29819293 46858889 47970167 75381691 157616263 247682699 328012223 527671837 1103313841 1733778893 12136452251