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204634193 = 3147140449
BaseRepresentation
bin11000011001001…
…11100001010001
3112021001111100012
430030213201101
5404341243233
632150004305
75033235101
oct1414474121
9467044305
10204634193
11a5568775
1258646695
133351a72a
141d26b201
1512e72548
hexc327851

204634193 has 8 divisors (see below), whose sum is σ = 215731200. Its totient is φ = 193818240.

The previous prime is 204634163. The next prime is 204634223. The reversal of 204634193 is 391436402.

It is an interprime number because it is at equal distance from previous prime (204634163) and next prime (204634223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204634193 - 226 = 137525329 is a prime.

It is a super-2 number, since 2×2046341932 = 83750305889522498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204634163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68768 + ... + 71681.

It is an arithmetic number, because the mean of its divisors is an integer number (26966400).

Almost surely, 2204634193 is an apocalyptic number.

It is an amenable number.

204634193 is a deficient number, since it is larger than the sum of its proper divisors (11097007).

204634193 is a wasteful number, since it uses less digits than its factorization.

204634193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140527.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 204634193 is about 14305.0408248281. The cubic root of 204634193 is about 589.2859243839.

The spelling of 204634193 in words is "two hundred four million, six hundred thirty-four thousand, one hundred ninety-three".

Divisors: 1 31 47 1457 140449 4353919 6601103 204634193