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205051472 = 2412815717
BaseRepresentation
bin11000011100011…
…01011001010000
3112021211200201222
430032031121100
5404443121342
632202544212
75036623463
oct1416153120
9467750658
10205051472
11a582322a
1258808068
1333635642
141d3392da
1513005ed2
hexc38d650

205051472 has 10 divisors (see below), whose sum is σ = 397287258. Its totient is φ = 102525728.

The previous prime is 205051421. The next prime is 205051487. The reversal of 205051472 is 274150502.

It can be written as a sum of positive squares in only one way, i.e., 201753616 + 3297856 = 14204^2 + 1816^2 .

It is a super-2 number, since 2×2050514722 = 84092212338733568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6407843 + ... + 6407874.

Almost surely, 2205051472 is an apocalyptic number.

It is an amenable number.

205051472 is a deficient number, since it is larger than the sum of its proper divisors (192235786).

205051472 is a wasteful number, since it uses less digits than its factorization.

205051472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12815725 (or 12815719 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 205051472 is about 14319.6184306706. The cubic root of 205051472 is about 589.6861991164.

The spelling of 205051472 in words is "two hundred five million, fifty-one thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 12815717 25631434 51262868 102525736 205051472