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205483613 = 1910814927
BaseRepresentation
bin11000011111101…
…10111001011101
3112022122122112012
430033312321131
5410100433423
632220121005
75043403406
oct1417667135
9468578465
10205483613
11a5a98975
1258996165
133375724a
141d40c9ad
151308e078
hexc3f6e5d

205483613 has 4 divisors (see below), whose sum is σ = 216298560. Its totient is φ = 194668668.

The previous prime is 205483601. The next prime is 205483631. The reversal of 205483613 is 316384502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-205483613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205483613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205483673) 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, 5407445 + ... + 5407482.

It is an arithmetic number, because the mean of its divisors is an integer number (54074640).

Almost surely, 2205483613 is an apocalyptic number.

It is an amenable number.

205483613 is a deficient number, since it is larger than the sum of its proper divisors (10814947).

205483613 is a wasteful number, since it uses less digits than its factorization.

205483613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10814946.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 205483613 is about 14334.6996131764. The cubic root of 205483613 is about 590.1001582332.

The spelling of 205483613 in words is "two hundred five million, four hundred eighty-three thousand, six hundred thirteen".

Divisors: 1 19 10814927 205483613