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897868056 = 233172200657
BaseRepresentation
bin110101100001000…
…110000100011000
32022120111102102110
4311201012010120
53314323234211
6225032232320
731151516061
oct6541060430
92276442373
10897868056
11420906618
1221083b6a0
1311402b197
1487363568
1553c59ea6
hex35846118

897868056 has 32 divisors (see below), whose sum is σ = 2376710640. Its totient is φ = 281683968.

The previous prime is 897868051. The next prime is 897868093. The reversal of 897868056 is 650868798.

It is a junction number, because it is equal to n+sod(n) for n = 897867987 and 897868005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897868051) 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 7 ways as a sum of consecutive naturals, for example, 1099921 + ... + 1100736.

Almost surely, 2897868056 is an apocalyptic number.

It is an amenable number.

897868056 is an abundant number, since it is smaller than the sum of its proper divisors (1478842584).

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

897868056 is a wasteful number, since it uses less digits than its factorization.

897868056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200683 (or 2200679 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The square root of 897868056 is about 29964.4465325158. The cubic root of 897868056 is about 964.7264228465.

The spelling of 897868056 in words is "eight hundred ninety-seven million, eight hundred sixty-eight thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 2200657 4401314 6601971 8802628 13203942 17605256 26407884 37411169 52815768 74822338 112233507 149644676 224467014 299289352 448934028 897868056