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315133 = 7133463
BaseRepresentation
bin1001100111011111101
3121000021121
41030323331
540041013
610430541
72451520
oct1147375
9530247
10315133
111a5845
12132451
13b0590
1482bb7
156358d
hex4cefd

315133 has 8 divisors (see below), whose sum is σ = 387968. Its totient is φ = 249264.

The previous prime is 315127. The next prime is 315179. The reversal of 315133 is 331513.

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 315133 - 213 = 306941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315103) 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, 1641 + ... + 1822.

It is an arithmetic number, because the mean of its divisors is an integer number (48496).

2315133 is an apocalyptic number.

It is an amenable number.

315133 is a deficient number, since it is larger than the sum of its proper divisors (72835).

315133 is a wasteful number, since it uses less digits than its factorization.

315133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483.

The product of its digits is 135, while the sum is 16.

The square root of 315133 is about 561.3670813291. The cubic root of 315133 is about 68.0504959417.

Adding to 315133 its reverse (331513), we get a palindrome (646646).

The spelling of 315133 in words is "three hundred fifteen thousand, one hundred thirty-three".

Divisors: 1 7 13 91 3463 24241 45019 315133