Search a number
-
+
12197370 = 235406579
BaseRepresentation
bin101110100001…
…110111111010
3211221200122110
4232201313322
511110303440
61113233150
7205450563
oct56416772
924850573
1012197370
116981079
1241027b6
1326b0aa3
14189716a
15110e080
hexba1dfa

12197370 has 16 divisors (see below), whose sum is σ = 29273760. Its totient is φ = 3252624.

The previous prime is 12197369. The next prime is 12197399. The reversal of 12197370 is 7379121.

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: 406579 = 12197370 / (1 + 2 + 1 + 9 + 7 + 3 + 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, 203260 + ... + 203319.

It is an arithmetic number, because the mean of its divisors is an integer number (1829610).

Almost surely, 212197370 is an apocalyptic number.

12197370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12197370 is an abundant number, since it is smaller than the sum of its proper divisors (17076390).

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

12197370 is a wasteful number, since it uses less digits than its factorization.

12197370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406589.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 12197370 is about 3492.4733356176. The cubic root of 12197370 is about 230.1912083565.

The spelling of 12197370 in words is "twelve million, one hundred ninety-seven thousand, three hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 406579 813158 1219737 2032895 2439474 4065790 6098685 12197370