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12403030 = 251772959
BaseRepresentation
bin101111010100…
…000101010110
3212100010202111
4233110011112
511133344110
61121501234
7210265303
oct57240526
925303674
1012403030
117001642
1241a181a
132753593
14190c0aa
15114ee8a
hexbd4156

12403030 has 16 divisors (see below), whose sum is σ = 23639040. Its totient is φ = 4669312.

The previous prime is 12403019. The next prime is 12403031. The reversal of 12403030 is 3030421.

12403030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12403030 is a modest number, since divided by 3030 gives 1240 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12403030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403031) 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, 36310 + ... + 36649.

It is an arithmetic number, because the mean of its divisors is an integer number (1477440).

Almost surely, 212403030 is an apocalyptic number.

12403030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12403030 is a deficient number, since it is larger than the sum of its proper divisors (11236010).

12403030 is a wasteful number, since it uses less digits than its factorization.

12403030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72983.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 12403030 is about 3521.7935771422. The cubic root of 12403030 is about 231.4777566184.

Adding to 12403030 its reverse (3030421), we get a palindrome (15433451).

The spelling of 12403030 in words is "twelve million, four hundred three thousand, thirty".

Divisors: 1 2 5 10 17 34 85 170 72959 145918 364795 729590 1240303 2480606 6201515 12403030