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12152214 = 2331391619
BaseRepresentation
bin101110010110…
…110110010110
3211212101201000
4232112312112
511102332324
61112244130
7205202124
oct56266626
924771630
1012152214
116950158
1240a0646
132696379
141884914
1511009c9
hexb96d96

12152214 has 32 divisors (see below), whose sum is σ = 27216000. Its totient is φ = 4019112.

The previous prime is 12152213. The next prime is 12152221. The reversal of 12152214 is 41225121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6697 + ... + 8315.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 212152214 is an apocalyptic number.

12152214 is an abundant number, since it is smaller than the sum of its proper divisors (15063786).

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

12152214 is a wasteful number, since it uses less digits than its factorization.

12152214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769 (or 1763 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 12152214 is about 3486.0025817546. The cubic root of 12152214 is about 229.9067927307.

Subtracting from 12152214 its sum of digits (18), we obtain a square (12152196 = 34862).

Adding to 12152214 its reverse (41225121), we get a palindrome (53377335).

The spelling of 12152214 in words is "twelve million, one hundred fifty-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 27 54 139 278 417 834 1251 1619 2502 3238 3753 4857 7506 9714 14571 29142 43713 87426 225041 450082 675123 1350246 2025369 4050738 6076107 12152214