Search a number
-
+
12755370 = 2351932203
BaseRepresentation
bin110000101010…
…000110101010
3220000001002010
4300222012222
511231132440
61133220350
7213263445
oct60520652
926001063
1012755370
117222331
1243316b6
132847a74
1419a065c
1511be580
hexc2a1aa

12755370 has 32 divisors (see below), whose sum is σ = 30785472. Its totient is φ = 3382272.

The previous prime is 12755359. The next prime is 12755371. The reversal of 12755370 is 7355721.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12755371) 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, 4689 + ... + 6891.

It is an arithmetic number, because the mean of its divisors is an integer number (962046).

Almost surely, 212755370 is an apocalyptic number.

12755370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12755370 is an abundant number, since it is smaller than the sum of its proper divisors (18030102).

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

12755370 is a wasteful number, since it uses less digits than its factorization.

12755370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 12755370 is about 3571.4660855173. The cubic root of 12755370 is about 233.6492297297.

The spelling of 12755370 in words is "twelve million, seven hundred fifty-five thousand, three hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 193 386 579 965 1158 1930 2203 2895 4406 5790 6609 11015 13218 22030 33045 66090 425179 850358 1275537 2125895 2551074 4251790 6377685 12755370