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12214641 = 319121317
BaseRepresentation
bin101110100110…
…000101110001
3211222120100010
4232212011301
511111332031
61113445133
7205552125
oct56460561
924876303
1012214641
11699304a
1241107a9
1326b88ca
14189d585
151114246
hexba6171

12214641 has 8 divisors (see below), whose sum is σ = 16372224. Its totient is φ = 8100080.

The previous prime is 12214639. The next prime is 12214673. The reversal of 12214641 is 14641221.

It is a happy number.

12214641 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12214641 - 21 = 12214639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12214681) 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, 10086 + ... + 11231.

It is an arithmetic number, because the mean of its divisors is an integer number (2046528).

Almost surely, 212214641 is an apocalyptic number.

It is an amenable number.

12214641 is a deficient number, since it is larger than the sum of its proper divisors (4157583).

12214641 is a wasteful number, since it uses less digits than its factorization.

12214641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21511.

The product of its digits is 384, while the sum is 21.

The square root of 12214641 is about 3494.9450639459. The cubic root of 12214641 is about 230.2998043731.

Adding to 12214641 its product of digits (384), we get a square (12215025 = 34952).

Adding to 12214641 its reverse (14641221), we get a palindrome (26855862).

It can be divided in two parts, 1221 and 4641, that multiplied together give a triangular number (5666661 = T3366).

The spelling of 12214641 in words is "twelve million, two hundred fourteen thousand, six hundred forty-one".

Divisors: 1 3 191 573 21317 63951 4071547 12214641