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12979450 = 2521123599
BaseRepresentation
bin110001100000…
…110011111010
3220102102110101
4301200303322
511310320300
61142110014
7215215651
oct61406372
926372411
1012979450
117365720
12441b30a
1328c5a63
141a1c198
151215b6a
hexc60cfa

12979450 has 24 divisors (see below), whose sum is σ = 26337600. Its totient is φ = 4719600.

The previous prime is 12979433. The next prime is 12979453. The reversal of 12979450 is 5497921.

12979450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×129794503 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12979453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11250 + ... + 12349.

It is an arithmetic number, because the mean of its divisors is an integer number (1097400).

Almost surely, 212979450 is an apocalyptic number.

12979450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12979450 is an abundant number, since it is smaller than the sum of its proper divisors (13358150).

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

12979450 is a wasteful number, since it uses less digits than its factorization.

12979450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23622 (or 23617 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 12979450 is about 3602.7003761068. The cubic root of 12979450 is about 235.0095061795.

The spelling of 12979450 in words is "twelve million, nine hundred seventy-nine thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 23599 47198 117995 235990 259589 519178 589975 1179950 1297945 2595890 6489725 12979450