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204472 = 2361419
BaseRepresentation
bin110001111010111000
3101101111001
4301322320
523020342
64214344
71511062
oct617270
9341431
10204472
1112a694
129a3b4
13720b8
1454732
15408b7
hex31eb8

204472 has 16 divisors (see below), whose sum is σ = 390600. Its totient is φ = 100320.

The previous prime is 204461. The next prime is 204481. The reversal of 204472 is 274402.

It is a congruent number.

It is an unprimeable number.

204472 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279 + ... + 697.

2204472 is an apocalyptic number.

It is an amenable number.

204472 is a deficient number, since it is larger than the sum of its proper divisors (186128).

204472 is a wasteful number, since it uses less digits than its factorization.

204472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 204472 is about 452.1858025193. The cubic root of 204472 is about 58.9130193950.

Adding to 204472 its reverse (274402), we get a palindrome (478874).

It can be divided in two parts, 20447 and 2, that added together give a square (20449 = 1432).

The spelling of 204472 in words is "two hundred four thousand, four hundred seventy-two", and thus it is an iban number.

Divisors: 1 2 4 8 61 122 244 419 488 838 1676 3352 25559 51118 102236 204472