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207028 = 2273709
BaseRepresentation
bin110010100010110100
3101111222201
4302202310
523111103
64234244
71521403
oct624264
9344881
10207028
111315a8
129b984
1373303
145563a
154151d
hex328b4

207028 has 12 divisors (see below), whose sum is σ = 367780. Its totient is φ = 101952.

The previous prime is 207017. The next prime is 207029. The reversal of 207028 is 820702.

It can be written as a sum of positive squares in 2 ways, for example, as 68644 + 138384 = 262^2 + 372^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206996 and 207014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63 + ... + 646.

2207028 is an apocalyptic number.

It is an amenable number.

207028 is a deficient number, since it is larger than the sum of its proper divisors (160752).

207028 is a wasteful number, since it uses less digits than its factorization.

207028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 207028 is about 455.0032966914. The cubic root of 207028 is about 59.1574840827.

The spelling of 207028 in words is "two hundred seven thousand, twenty-eight".

Divisors: 1 2 4 73 146 292 709 1418 2836 51757 103514 207028