Search a number
-
+
12257532089 = 1161229241331
BaseRepresentation
bin10110110101001101…
…10001100010111001
31011122020201010221222
423122212301202321
5200100412011324
65344145241425
7612516206105
oct133246614271
934566633858
1012257532089
11522006a310
122461033275
13120461368a
14843cd8905
154bb19155e
hex2da9b18b9

12257532089 has 32 divisors (see below), whose sum is σ = 13748465280. Its totient is φ = 10834560000.

The previous prime is 12257532061. The next prime is 12257532103. The reversal of 12257532089 is 98023575221.

It is not a de Polignac number, because 12257532089 - 28 = 12257531833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12257532019) 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, 37031654 + ... + 37031984.

It is an arithmetic number, because the mean of its divisors is an integer number (429639540).

Almost surely, 212257532089 is an apocalyptic number.

It is an amenable number.

12257532089 is a deficient number, since it is larger than the sum of its proper divisors (1490933191).

12257532089 is a wasteful number, since it uses less digits than its factorization.

12257532089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 12257532089 in words is "twelve billion, two hundred fifty-seven million, five hundred thirty-two thousand, eighty-nine".

Divisors: 1 11 61 229 241 331 671 2519 2651 3641 13969 14701 20191 55189 75799 79771 153659 161711 222101 607079 833789 877481 3366529 4623739 4866031 18267559 37031819 50861129 53526341 200943149 1114321099 12257532089