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12442620 = 2235207377
BaseRepresentation
bin101111011101…
…101111111100
3212102011001210
4233131233330
511141130440
61122404420
7210521601
oct57355774
925364053
1012442620
117029363
124200710
1327685c8
14191c6a8
15115ba80
hexbddbfc

12442620 has 24 divisors (see below), whose sum is σ = 34839504. Its totient is φ = 3318016.

The previous prime is 12442607. The next prime is 12442627. The reversal of 12442620 is 2624421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103629 + ... + 103748.

It is an arithmetic number, because the mean of its divisors is an integer number (1451646).

Almost surely, 212442620 is an apocalyptic number.

12442620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12442620 is an abundant number, since it is smaller than the sum of its proper divisors (22396884).

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

12442620 is a wasteful number, since it uses less digits than its factorization.

12442620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207389 (or 207387 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 12442620 is about 3527.4098145807. The cubic root of 12442620 is about 231.7237844315.

The spelling of 12442620 in words is "twelve million, four hundred forty-two thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 207377 414754 622131 829508 1036885 1244262 2073770 2488524 3110655 4147540 6221310 12442620