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6220628 = 221555157
BaseRepresentation
bin10111101110101101010100
3102201001002122
4113232231110
53043030003
6341155112
7103605641
oct27565524
912631078
106220628
113569717
1220bba98
13139a55b
14b7cdc8
1582d238
hex5eeb54

6220628 has 6 divisors (see below), whose sum is σ = 10886106. Its totient is φ = 3110312.

The previous prime is 6220579. The next prime is 6220631. The reversal of 6220628 is 8260226.

It can be written as a sum of positive squares in only one way, i.e., 4376464 + 1844164 = 2092^2 + 1358^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6220597 and 6220606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777575 + ... + 777582.

It is an arithmetic number, because the mean of its divisors is an integer number (1814351).

Almost surely, 26220628 is an apocalyptic number.

It is an amenable number.

6220628 is a deficient number, since it is larger than the sum of its proper divisors (4665478).

6220628 is a wasteful number, since it uses less digits than its factorization.

6220628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555161 (or 1555159 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 6220628 is about 2494.1186820198. The cubic root of 6220628 is about 183.9125687328.

The spelling of 6220628 in words is "six million, two hundred twenty thousand, six hundred twenty-eight".

Divisors: 1 2 4 1555157 3110314 6220628