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620313 = 31712163
BaseRepresentation
bin10010111011100011001
31011111220120
42113130121
5124322223
621143453
75162331
oct2273431
91144816
10620313
11394061
1225ab89
13189465
141220c1
15c3be3
hex97719

620313 has 8 divisors (see below), whose sum is σ = 875808. Its totient is φ = 389184.

The previous prime is 620311. The next prime is 620317. The reversal of 620313 is 313026.

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

It is not a de Polignac number, because 620313 - 21 = 620311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620292 and 620301.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620313.

It is not an unprimeable number, because it can be changed into a prime (620311) by changing a digit.

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, 6031 + ... + 6132.

It is an arithmetic number, because the mean of its divisors is an integer number (109476).

2620313 is an apocalyptic number.

It is an amenable number.

620313 is a deficient number, since it is larger than the sum of its proper divisors (255495).

620313 is a wasteful number, since it uses less digits than its factorization.

620313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12183.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 620313 is about 787.5995175214. The cubic root of 620313 is about 85.2845366497.

Adding to 620313 its reverse (313026), we get a palindrome (933339).

It can be divided in two parts, 6203 and 13, that added together give a triangular number (6216 = T111).

The spelling of 620313 in words is "six hundred twenty thousand, three hundred thirteen".

Divisors: 1 3 17 51 12163 36489 206771 620313