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12738030 = 235424601
BaseRepresentation
bin110000100101…
…110111101110
3212222011021220
4300211313232
511230104110
61133004210
7213162054
oct60456756
925864256
1012738030
1172102a8
124323666
13283cbc6
1419981d4
1511b9370
hexc25dee

12738030 has 16 divisors (see below), whose sum is σ = 30571344. Its totient is φ = 3396800.

The previous prime is 12738017. The next prime is 12738031. The reversal of 12738030 is 3083721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12738031) 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, 212271 + ... + 212330.

It is an arithmetic number, because the mean of its divisors is an integer number (1910709).

Almost surely, 212738030 is an apocalyptic number.

12738030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12738030 is an abundant number, since it is smaller than the sum of its proper divisors (17833314).

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

12738030 is a wasteful number, since it uses less digits than its factorization.

12738030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424611.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12738030 is about 3569.0376854273. The cubic root of 12738030 is about 233.5433053248.

The spelling of 12738030 in words is "twelve million, seven hundred thirty-eight thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 424601 849202 1273803 2123005 2547606 4246010 6369015 12738030