Search a number
-
+
315301309 = 3721140387
BaseRepresentation
bin10010110010110…
…001110110111101
3210222021222002021
4102302301312331
51121204120214
651142000141
710546005541
oct2262616675
9728258067
10315301309
11151a855a4
1289716051
135042762b
142dc37a21
151ca32924
hex12cb1dbd

315301309 has 8 divisors (see below), whose sum is σ = 325365728. Its totient is φ = 305318160.

The previous prime is 315301291. The next prime is 315301321. The reversal of 315301309 is 903103513.

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 315301309 - 25 = 315301277 is a prime.

It is a super-2 number, since 2×3153013092 = 198829830914226962, 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 (315301379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12387 + ... + 28000.

It is an arithmetic number, because the mean of its divisors is an integer number (40670716).

Almost surely, 2315301309 is an apocalyptic number.

It is an amenable number.

315301309 is a deficient number, since it is larger than the sum of its proper divisors (10064419).

315301309 is a wasteful number, since it uses less digits than its factorization.

315301309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40635.

The product of its (nonzero) digits is 1215, while the sum is 25.

The square root of 315301309 is about 17756.7257398429. The cubic root of 315301309 is about 680.6260878771.

The spelling of 315301309 in words is "three hundred fifteen million, three hundred one thousand, three hundred nine".

Divisors: 1 37 211 7807 40387 1494319 8521657 315301309