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206265031 = 729466433
BaseRepresentation
bin11000100101101…
…01101011000111
3112101010100102121
430102311223013
5410300440111
632244550411
75053136530
oct1422655307
9471110377
10206265031
11a6481a75
12590b2407
133396bb1b
141d573687
1513195871
hexc4b5ac7

206265031 has 4 divisors (see below), whose sum is σ = 235731472. Its totient is φ = 176798592.

The previous prime is 206265013. The next prime is 206265049. The reversal of 206265031 is 130562602.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (206265013) and next prime (206265049).

It is a cyclic number.

It is not a de Polignac number, because 206265031 - 213 = 206256839 is a prime.

It is a super-2 number, since 2×2062650312 = 85090526026861922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206264987 and 206265005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206265071) 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, 14733210 + ... + 14733223.

It is an arithmetic number, because the mean of its divisors is an integer number (58932868).

Almost surely, 2206265031 is an apocalyptic number.

206265031 is a deficient number, since it is larger than the sum of its proper divisors (29466441).

206265031 is an equidigital number, since it uses as much as digits as its factorization.

206265031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29466440.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 206265031 is about 14361.9299190603. The cubic root of 206265031 is about 590.8472277076.

The spelling of 206265031 in words is "two hundred six million, two hundred sixty-five thousand, thirty-one".

Divisors: 1 7 29466433 206265031