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206264125 = 538811873
BaseRepresentation
bin11000100101101…
…01011100111101
3112101010022012001
430102311130331
5410300423000
632244542301
75053134064
oct1422653475
9471108161
10206264125
11a6481321
12590b1991
133396b5a2
141d5731db
151319546a
hexc4b573d

206264125 has 16 divisors (see below), whose sum is σ = 257847408. Its totient is φ = 164736000.

The previous prime is 206264117. The next prime is 206264131. The reversal of 206264125 is 521462602.

It can be written as a sum of positive squares in 8 ways, for example, as 162664516 + 43599609 = 12754^2 + 6603^2 .

It is not a de Polignac number, because 206264125 - 23 = 206264117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206264093 and 206264102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109189 + ... + 111061.

It is an arithmetic number, because the mean of its divisors is an integer number (16115463).

Almost surely, 2206264125 is an apocalyptic number.

206264125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206264125 is a deficient number, since it is larger than the sum of its proper divisors (51583283).

206264125 is an equidigital number, since it uses as much as digits as its factorization.

206264125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2759 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 206264125 is about 14361.8983773037. The cubic root of 206264125 is about 590.8463626258.

The spelling of 206264125 in words is "two hundred six million, two hundred sixty-four thousand, one hundred twenty-five".

Divisors: 1 5 25 125 881 1873 4405 9365 22025 46825 110125 234125 1650113 8250565 41252825 206264125