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12671582349 = 3172312978329
BaseRepresentation
bin10111100110100100…
…10000000010001101
31012201002211002010210
423303102100002031
5201422411113344
65453215553033
7626004446526
oct136322200215
935632732123
1012671582349
115412861408
12255782b779
13126c33422a
14882cb984d
154e26ccdb9
hex2f349008d

12671582349 has 32 divisors (see below), whose sum is σ = 18683723520. Its totient is φ = 7598333952.

The previous prime is 12671582269. The next prime is 12671582359. The reversal of 12671582349 is 94328517621.

It is not a de Polignac number, because 12671582349 - 217 = 12671451277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12671582298 and 12671582307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671582359) 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, 1517217 + ... + 1525545.

It is an arithmetic number, because the mean of its divisors is an integer number (583866360).

Almost surely, 212671582349 is an apocalyptic number.

It is an amenable number.

12671582349 is a deficient number, since it is larger than the sum of its proper divisors (6012141171).

12671582349 is a wasteful number, since it uses less digits than its factorization.

12671582349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9669.

The product of its digits is 725760, while the sum is 48.

The spelling of 12671582349 in words is "twelve billion, six hundred seventy-one million, five hundred eighty-two thousand, three hundred forty-nine".

Divisors: 1 3 17 23 51 69 391 1173 1297 3891 8329 22049 24987 29831 66147 89493 141593 191567 424779 507127 574701 1521381 3256639 9769917 10802713 32408139 183646121 248462399 550938363 745387197 4223860783 12671582349