Search a number
-
+
972945 = 3357207
BaseRepresentation
bin11101101100010010001
31211102122000
43231202101
5222113240
632504213
711161401
oct3554221
91742560
10972945
11604a96
123ab069
13280b0c
141b4801
15143430
hexed891

972945 has 16 divisors (see below), whose sum is σ = 1729920. Its totient is φ = 518832.

The previous prime is 972943. The next prime is 972967. The reversal of 972945 is 549279.

972945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 972945 - 21 = 972943 is a prime.

It is a super-3 number, since 3×9729453 = 2763033346634425875, which contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (972941) 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, 3469 + ... + 3738.

It is an arithmetic number, because the mean of its divisors is an integer number (108120).

2972945 is an apocalyptic number.

It is an amenable number.

972945 is a deficient number, since it is larger than the sum of its proper divisors (756975).

972945 is a wasteful number, since it uses less digits than its factorization.

972945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221 (or 7215 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 972945 is about 986.3797443176. The cubic root of 972945 is about 99.0899091395.

The spelling of 972945 in words is "nine hundred seventy-two thousand, nine hundred forty-five".

Divisors: 1 3 5 9 15 27 45 135 7207 21621 36035 64863 108105 194589 324315 972945