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316393869 = 3119587693
BaseRepresentation
bin10010110110111…
…100100110001101
3211001100110210110
4102312330212031
51121444100434
651221230233
710561206051
oct2266744615
9731313713
10316393869
11152661440
1289b62379
135071aa0c
143003dc61
151cb9b4e9
hex12dbc98d

316393869 has 8 divisors (see below), whose sum is σ = 460209312. Its totient is φ = 191753840.

The previous prime is 316393841. The next prime is 316393897. The reversal of 316393869 is 968393613.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (316393841) and next prime (316393897).

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 316393869 - 25 = 316393837 is a prime.

It is a super-2 number, since 2×3163938692 = 200210160681578322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316393829) 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, 4793814 + ... + 4793879.

It is an arithmetic number, because the mean of its divisors is an integer number (57526164).

Almost surely, 2316393869 is an apocalyptic number.

It is an amenable number.

316393869 is a deficient number, since it is larger than the sum of its proper divisors (143815443).

316393869 is a wasteful number, since it uses less digits than its factorization.

316393869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587707.

The product of its digits is 629856, while the sum is 48.

The square root of 316393869 is about 17787.4638158451. The cubic root of 316393869 is about 681.4113341882.

The spelling of 316393869 in words is "three hundred sixteen million, three hundred ninety-three thousand, eight hundred sixty-nine".

Divisors: 1 3 11 33 9587693 28763079 105464623 316393869