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315429 = 3105143
BaseRepresentation
bin1001101000000100101
3121000200120
41031000211
540043204
610432153
72452422
oct1150045
9530616
10315429
111a5a94
12132659
13b075a
1482d49
15636d9
hex4d025

315429 has 4 divisors (see below), whose sum is σ = 420576. Its totient is φ = 210284.

The previous prime is 315421. The next prime is 315437. The reversal of 315429 is 924513.

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 an interprime number because it is at equal distance from previous prime (315421) and next prime (315437).

It is a cyclic number.

It is not a de Polignac number, because 315429 - 23 = 315421 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 315399 and 315408.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315429.

It is not an unprimeable number, because it can be changed into a prime (315421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52569 + ... + 52574.

It is an arithmetic number, because the mean of its divisors is an integer number (105144).

2315429 is an apocalyptic number.

It is an amenable number.

315429 is a deficient number, since it is larger than the sum of its proper divisors (105147).

315429 is a wasteful number, since it uses less digits than its factorization.

315429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105146.

The product of its digits is 1080, while the sum is 24.

The square root of 315429 is about 561.6306615562. The cubic root of 315429 is about 68.0717955659.

It can be divided in two parts, 31 and 5429, that added together give a triangular number (5460 = T104).

The spelling of 315429 in words is "three hundred fifteen thousand, four hundred twenty-nine".

Divisors: 1 3 105143 315429