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897948053 = 1497018597
BaseRepresentation
bin110101100001011…
…001100110010101
32022120122111011022
4311201121212111
53314333314203
6225034050525
731152301232
oct6541314625
92276574138
10897948053
11420960732
12210879a45
13114058712
1487384789
1553c73a38
hex35859995

897948053 has 8 divisors (see below), whose sum is σ = 905369400. Its totient is φ = 890545600.

The previous prime is 897948047. The next prime is 897948061. The reversal of 897948053 is 350849798.

897948053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 195804049 + 702144004 = 13993^2 + 26498^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 897948053 - 26 = 897947989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 897947986 and 897948004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897948043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100151 + ... + 108747.

It is an arithmetic number, because the mean of its divisors is an integer number (113171175).

Almost surely, 2897948053 is an apocalyptic number.

It is an amenable number.

897948053 is a deficient number, since it is larger than the sum of its proper divisors (7421347).

897948053 is a wasteful number, since it uses less digits than its factorization.

897948053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9447.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 897948053 is about 29965.7813680872. The cubic root of 897948053 is about 964.7550732803.

The spelling of 897948053 in words is "eight hundred ninety-seven million, nine hundred forty-eight thousand, fifty-three".

Divisors: 1 149 701 8597 104449 1280953 6026497 897948053