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12950656 = 27235383
BaseRepresentation
bin110001011001…
…110010000000
3220100221221221
4301121302000
511303410111
61141324424
7215036005
oct61316200
926327857
1012950656
117346024
124406714
1328b5914
141a118ac
15120c371
hexc59c80

12950656 has 64 divisors (see below), whose sum is σ = 27760320. Its totient is φ = 6003712.

The previous prime is 12950627. The next prime is 12950669. The reversal of 12950656 is 65605921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155991 + ... + 156073.

It is an arithmetic number, because the mean of its divisors is an integer number (433755).

Almost surely, 212950656 is an apocalyptic number.

12950656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12950656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13880160).

12950656 is an abundant number, since it is smaller than the sum of its proper divisors (14809664).

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

12950656 is an equidigital number, since it uses as much as digits as its factorization.

12950656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 12950656 is about 3598.7019882174. The cubic root of 12950656 is about 234.8355934730.

It can be divided in two parts, 129506 and 56, that multiplied together give a triangular number (7252336 = T3808).

The spelling of 12950656 in words is "twelve million, nine hundred fifty thousand, six hundred fifty-six".

Divisors: 1 2 4 8 16 23 32 46 53 64 83 92 106 128 166 184 212 332 368 424 664 736 848 1219 1328 1472 1696 1909 2438 2656 2944 3392 3818 4399 4876 5312 6784 7636 8798 9752 10624 15272 17596 19504 30544 35192 39008 61088 70384 78016 101177 122176 140768 156032 202354 244352 281536 404708 563072 809416 1618832 3237664 6475328 12950656