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620012 = 22155003
BaseRepresentation
bin10010111010111101100
31011111111102
42113113230
5124320022
621142232
75161421
oct2272754
91144442
10620012
11393908
1225a978
13189293
14121d48
15c3a92
hex975ec

620012 has 6 divisors (see below), whose sum is σ = 1085028. Its totient is φ = 310004.

The previous prime is 620003. The next prime is 620029. The reversal of 620012 is 210026.

It is a junction number, because it is equal to n+sod(n) for n = 619975 and 620002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77498 + ... + 77505.

It is an arithmetic number, because the mean of its divisors is an integer number (180838).

2620012 is an apocalyptic number.

It is an amenable number.

620012 is a deficient number, since it is larger than the sum of its proper divisors (465016).

620012 is a wasteful number, since it uses less digits than its factorization.

620012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155007 (or 155005 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 620012 is about 787.4084073719. The cubic root of 620012 is about 85.2707399595.

Adding to 620012 its reverse (210026), we get a palindrome (830038).

The spelling of 620012 in words is "six hundred twenty thousand, twelve".

Divisors: 1 2 4 155003 310006 620012