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205132042 = 2195152571
BaseRepresentation
bin11000011101000…
…01000100001010
3112021222210021001
430032201010022
5410003211132
632204405214
75040410413
oct1416410412
9467883231
10205132042
11a5878815
125884680a
133366320b
141d35a80a
151301ece7
hexc3a110a

205132042 has 8 divisors (see below), whose sum is σ = 307861632. Its totient is φ = 102511500.

The previous prime is 205132021. The next prime is 205132043. The reversal of 205132042 is 240231502.

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

It is not an unprimeable number, because it can be changed into a prime (205132043) 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, 22384 + ... + 30187.

It is an arithmetic number, because the mean of its divisors is an integer number (38482704).

Almost surely, 2205132042 is an apocalyptic number.

205132042 is a deficient number, since it is larger than the sum of its proper divisors (102729590).

205132042 is a wasteful number, since it uses less digits than its factorization.

205132042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54524.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 205132042 is about 14322.4314276592. The cubic root of 205132042 is about 589.7634232969.

Adding to 205132042 its reverse (240231502), we get a palindrome (445363544).

The spelling of 205132042 in words is "two hundred five million, one hundred thirty-two thousand, forty-two".

Divisors: 1 2 1951 3902 52571 105142 102566021 205132042