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205714031 = 213796263
BaseRepresentation
bin11000100001011…
…11001001101111
3112100002100121012
430100233021233
5410130322111
632225055435
75045353235
oct1420571157
9470070535
10205714031
11a6135aa6
1258a8757b
13338080a3
141d46c955
15130d748b
hexc42f26f

205714031 has 4 divisors (see below), whose sum is σ = 205812432. Its totient is φ = 205615632.

The previous prime is 205714013. The next prime is 205714049. The reversal of 205714031 is 130417502.

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 (205714013) and next prime (205714049).

It is a cyclic number.

It is not a de Polignac number, because 205714031 - 226 = 138605167 is a prime.

It is a super-2 number, since 2×2057140312 = 84636525100537922, 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 = 205713988 and 205714006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205710031) 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, 45995 + ... + 50268.

It is an arithmetic number, because the mean of its divisors is an integer number (51453108).

Almost surely, 2205714031 is an apocalyptic number.

205714031 is a deficient number, since it is larger than the sum of its proper divisors (98401).

205714031 is an equidigital number, since it uses as much as digits as its factorization.

205714031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98400.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 205714031 is about 14342.7344324574. The cubic root of 205714031 is about 590.3206444396.

The spelling of 205714031 in words is "two hundred five million, seven hundred fourteen thousand, thirty-one".

Divisors: 1 2137 96263 205714031