Search a number
-
+
12744570 = 235424819
BaseRepresentation
bin110000100111…
…011101111010
3212222111021010
4300213131322
511230311240
61133054350
7213220116
oct60473572
925874233
1012744570
117215203
1243273b6
132842b87
14199a746
1511bb280
hexc2777a

12744570 has 16 divisors (see below), whose sum is σ = 30587040. Its totient is φ = 3398544.

The previous prime is 12744569. The next prime is 12744581. The reversal of 12744570 is 7544721.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 424819 = 12744570 / (1 + 2 + 7 + 4 + 4 + 5 + 7 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212380 + ... + 212439.

It is an arithmetic number, because the mean of its divisors is an integer number (1911690).

Almost surely, 212744570 is an apocalyptic number.

12744570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12744570 is an abundant number, since it is smaller than the sum of its proper divisors (17842470).

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

12744570 is a wasteful number, since it uses less digits than its factorization.

12744570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424829.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 12744570 is about 3569.9537812134. The cubic root of 12744570 is about 233.5832673361.

The spelling of 12744570 in words is "twelve million, seven hundred forty-four thousand, five hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 424819 849638 1274457 2124095 2548914 4248190 6372285 12744570