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620125 = 5311241
BaseRepresentation
bin10010111011001011101
31011111122121
42113121131
5124321000
621142541
75161642
oct2273135
91144577
10620125
11393a00
1225aa51
1318934c
14121dc9
15c3b1a
hex9765d

620125 has 24 divisors (see below), whose sum is σ = 871416. Its totient is φ = 440000.

The previous prime is 620117. The next prime is 620159. The reversal of 620125 is 521026.

620125 = 125 + 135.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 139876 + 480249 = 374^2 + 693^2 .

It is not a de Polignac number, because 620125 - 23 = 620117 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 620099 and 620108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15105 + ... + 15145.

It is an arithmetic number, because the mean of its divisors is an integer number (36309).

2620125 is an apocalyptic number.

It is an amenable number.

620125 is a deficient number, since it is larger than the sum of its proper divisors (251291).

620125 is a wasteful number, since it uses less digits than its factorization.

620125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 620125 is about 787.4801584802. The cubic root of 620125 is about 85.2759199713.

Subtracting from 620125 its reverse (521026), we obtain a palindrome (99099).

It can be divided in two parts, 6201 and 25, that added together give a palindrome (6226).

The spelling of 620125 in words is "six hundred twenty thousand, one hundred twenty-five".

Divisors: 1 5 11 25 41 55 121 125 205 275 451 605 1025 1375 2255 3025 4961 5125 11275 15125 24805 56375 124025 620125