Search a number
-
+
897642 = 2351847
BaseRepresentation
bin11011011001001101010
31200121100000
43123021222
5212211032
631123430
710426014
oct3331152
91617300
10897642
11563459
12373576
13255765
141951b4
1512ae7c
hexdb26a

897642 has 24 divisors (see below), whose sum is σ = 2018016. Its totient is φ = 299052.

The previous prime is 897629. The next prime is 897647. The reversal of 897642 is 246798.

897642 is a `hidden beast` number, since 8 + 9 + 7 + 642 = 666.

It is a super-2 number, since 2×8976422 = 1611522320328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 897597 and 897606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438 + ... + 1409.

It is an arithmetic number, because the mean of its divisors is an integer number (84084).

2897642 is an apocalyptic number.

897642 is an abundant number, since it is smaller than the sum of its proper divisors (1120374).

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

897642 is a wasteful number, since it uses less digits than its factorization.

897642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1852 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 897642 is about 947.4397078443. The cubic root of 897642 is about 96.4645453080.

The spelling of 897642 in words is "eight hundred ninety-seven thousand, six hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 1847 3694 5541 11082 16623 33246 49869 99738 149607 299214 448821 897642