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312055 = 5139449
BaseRepresentation
bin1001100001011110111
3120212001121
41030023313
534441210
610404411
72436532
oct1141367
9525047
10312055
111a34a7
12130707
13ac063
1481a19
15626da
hex4c2f7

312055 has 8 divisors (see below), whose sum is σ = 378000. Its totient is φ = 247296.

The previous prime is 312047. The next prime is 312071. The reversal of 312055 is 550213.

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 312055 - 23 = 312047 is a prime.

312055 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471 + ... + 919.

It is an arithmetic number, because the mean of its divisors is an integer number (47250).

2312055 is an apocalyptic number.

312055 is a deficient number, since it is larger than the sum of its proper divisors (65945).

312055 is a wasteful number, since it uses less digits than its factorization.

312055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 312055 is about 558.6188324788. The cubic root of 312055 is about 67.8282140242.

Adding to 312055 its reverse (550213), we get a palindrome (862268).

It can be divided in two parts, 31205 and 5, that multiplied together give a square (156025 = 3952).

The spelling of 312055 in words is "three hundred twelve thousand, fifty-five".

Divisors: 1 5 139 449 695 2245 62411 312055