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4012506 = 232415437
BaseRepresentation
bin1111010011100111011010
321112212010100
433103213122
52011400011
6222000230
746051161
oct17234732
97485110
104012506
1122a0723
121416076
13aa6484
147663d8
15543d56
hex3d39da

4012506 has 24 divisors (see below), whose sum is σ = 8907444. Its totient is φ = 1304640.

The previous prime is 4012499. The next prime is 4012507. The reversal of 4012506 is 6052104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3767481 + 245025 = 1941^2 + 495^2 .

It is a super-2 number, since 2×40125062 = 32200408800072, which contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4012507) 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, 1981 + ... + 3456.

Almost surely, 24012506 is an apocalyptic number.

4012506 is an abundant number, since it is smaller than the sum of its proper divisors (4894938).

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

4012506 is a wasteful number, since it uses less digits than its factorization.

4012506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486 (or 5483 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 4012506 is about 2003.1240600622. The cubic root of 4012506 is about 158.9053667325.

The spelling of 4012506 in words is "four million, twelve thousand, five hundred six".

Divisors: 1 2 3 6 9 18 41 82 123 246 369 738 5437 10874 16311 32622 48933 97866 222917 445834 668751 1337502 2006253 4012506