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897880360913 = 6411400749393
BaseRepresentation
bin11010001000011011101…
…01110000011111010001
310011211120211022021000222
431010031311300133101
5104202324333022123
61524251444122425
7121604212066514
oct15041565603721
93154524267028
10897880360913
11316875068658
12126022396415
13668925b31b3
1431659aa6d7b
15185513d56c8
hexd10dd707d1

897880360913 has 4 divisors (see below), whose sum is σ = 899281110948. Its totient is φ = 896479610880.

The previous prime is 897880360847. The next prime is 897880360921. The reversal of 897880360913 is 319063088798.

897880360913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 847857907264 + 50022453649 = 920792^2 + 223657^2 .

It is a cyclic number.

It is not a de Polignac number, because 897880360913 - 210 = 897880359889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897880362913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700374056 + ... + 700375337.

It is an arithmetic number, because the mean of its divisors is an integer number (224820277737).

Almost surely, 2897880360913 is an apocalyptic number.

It is an amenable number.

897880360913 is a deficient number, since it is larger than the sum of its proper divisors (1400750035).

897880360913 is a wasteful number, since it uses less digits than its factorization.

897880360913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400750034.

The product of its (nonzero) digits is 15676416, while the sum is 62.

The spelling of 897880360913 in words is "eight hundred ninety-seven billion, eight hundred eighty million, three hundred sixty thousand, nine hundred thirteen".

Divisors: 1 641 1400749393 897880360913