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204505214 = 2102252607
BaseRepresentation
bin11000011000010…
…00000001111110
3112020210221102012
430030020001332
5404323131324
632143131222
75032160054
oct1414100176
9466727365
10204505214
11a548a881
12585a3b12
13334a3b04
141d2361d4
1512e4920e
hexc30807e

204505214 has 4 divisors (see below), whose sum is σ = 306757824. Its totient is φ = 102252606.

The previous prime is 204505211. The next prime is 204505219. The reversal of 204505214 is 412505402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412505402 = 2206252701.

It is a self number, because there is not a number n which added to its sum of digits gives 204505214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204505211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51126302 + ... + 51126305.

It is an arithmetic number, because the mean of its divisors is an integer number (76689456).

Almost surely, 2204505214 is an apocalyptic number.

204505214 is a deficient number, since it is larger than the sum of its proper divisors (102252610).

204505214 is a wasteful number, since it uses less digits than its factorization.

204505214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102252609.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 204505214 is about 14300.5319481479. The cubic root of 204505214 is about 589.1620912449.

The spelling of 204505214 in words is "two hundred four million, five hundred five thousand, two hundred fourteen".

Divisors: 1 2 102252607 204505214