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12676986 = 234721597
BaseRepresentation
bin110000010110…
…111101111010
3212212001120000
4300112331322
511221130421
61131413430
7212516100
oct60267572
925761500
1012676986
117179453
1242b4276
13281b19a
14197dc70
1511a6226
hexc16f7a

12676986 has 60 divisors (see below), whose sum is σ = 33064218. Its totient is φ = 3619728.

The previous prime is 12676967. The next prime is 12676991. The reversal of 12676986 is 68967621.

It can be written as a sum of positive squares in only one way, i.e., 12006225 + 670761 = 3465^2 + 819^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7140 + ... + 8736.

Almost surely, 212676986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12676986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16532109).

12676986 is an abundant number, since it is smaller than the sum of its proper divisors (20387232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12676986 is a wasteful number, since it uses less digits than its factorization.

12676986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1609 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 12676986 is about 3560.4755300381. The cubic root of 12676986 is about 233.1696407456.

The spelling of 12676986 in words is "twelve million, six hundred seventy-six thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 49 54 63 81 98 126 147 162 189 294 378 441 567 882 1134 1323 1597 2646 3194 3969 4791 7938 9582 11179 14373 22358 28746 33537 43119 67074 78253 86238 100611 129357 156506 201222 234759 258714 301833 469518 603666 704277 905499 1408554 1810998 2112831 4225662 6338493 12676986