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313909069 = 3110126099
BaseRepresentation
bin10010101101011…
…101111101001101
3210212200020021211
4102231131331031
51120330042234
651052054421
710531116535
oct2255357515
9725606254
10313909069
11151214591
1289164411
135005aa16
142d9944c5
151c85a164
hex12b5df4d

313909069 has 4 divisors (see below), whose sum is σ = 324035200. Its totient is φ = 303782940.

The previous prime is 313909061. The next prime is 313909081. The reversal of 313909069 is 960909313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313909069 - 23 = 313909061 is a prime.

It is a super-2 number, since 2×3139090692 = 197077807200893522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313909061) 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, 5063019 + ... + 5063080.

It is an arithmetic number, because the mean of its divisors is an integer number (81008800).

Almost surely, 2313909069 is an apocalyptic number.

It is an amenable number.

313909069 is a deficient number, since it is larger than the sum of its proper divisors (10126131).

313909069 is a wasteful number, since it uses less digits than its factorization.

313909069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10126130.

The product of its (nonzero) digits is 39366, while the sum is 40.

The square root of 313909069 is about 17717.4791942872. The cubic root of 313909069 is about 679.6228221142.

The spelling of 313909069 in words is "three hundred thirteen million, nine hundred nine thousand, sixty-nine".

Divisors: 1 31 10126099 313909069