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315353121 = 3671568921
BaseRepresentation
bin10010110010111…
…110100000100001
3210222101121011020
4102302332200201
51121212244441
651143040053
710546312566
oct2262764041
9728347136
10315353121
11152010516
1289740029
13504450a5
142dc4c86d
151ca42e66
hex12cbe821

315353121 has 8 divisors (see below), whose sum is σ = 426746784. Its totient is φ = 207097440.

The previous prime is 315353119. The next prime is 315353123. The reversal of 315353121 is 121353513.

It is an interprime number because it is at equal distance from previous prime (315353119) and next prime (315353123).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 315353121 - 21 = 315353119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315353091 and 315353100.

It is not an unprimeable number, because it can be changed into a prime (315353123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784260 + ... + 784661.

It is an arithmetic number, because the mean of its divisors is an integer number (53343348).

Almost surely, 2315353121 is an apocalyptic number.

It is an amenable number.

315353121 is a deficient number, since it is larger than the sum of its proper divisors (111393663).

315353121 is a wasteful number, since it uses less digits than its factorization.

315353121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568991.

The product of its digits is 1350, while the sum is 24.

The square root of 315353121 is about 17758.1846200562. The cubic root of 315353121 is about 680.6633672100.

The spelling of 315353121 in words is "three hundred fifteen million, three hundred fifty-three thousand, one hundred twenty-one".

Divisors: 1 3 67 201 1568921 4706763 105117707 315353121