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313252897 = 1737694889
BaseRepresentation
bin10010101010111…
…101110000100001
3210211102220012011
4102222331300201
51120143043042
651030032521
710522414516
oct2252756041
9724386164
10313252897
111509065a1
1288aa8741
134cb8b159
142d86330d
151c77aa17
hex12abdc21

313252897 has 8 divisors (see below), whose sum is σ = 331835400. Its totient is φ = 294687744.

The previous prime is 313252883. The next prime is 313252903. The reversal of 313252897 is 798252313.

It can be written as a sum of positive squares in 4 ways, for example, as 168194961 + 145057936 = 12969^2 + 12044^2 .

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 313252897 - 215 = 313220129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313252817) 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, 61629 + ... + 66517.

It is an arithmetic number, because the mean of its divisors is an integer number (41479425).

Almost surely, 2313252897 is an apocalyptic number.

It is an amenable number.

313252897 is a deficient number, since it is larger than the sum of its proper divisors (18582503).

313252897 is a wasteful number, since it uses less digits than its factorization.

313252897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675.

The product of its digits is 90720, while the sum is 40.

The square root of 313252897 is about 17698.9518616216. The cubic root of 313252897 is about 679.1489475665.

The spelling of 313252897 in words is "three hundred thirteen million, two hundred fifty-two thousand, eight hundred ninety-seven".

Divisors: 1 17 3769 4889 64073 83113 18426641 313252897