Search a number
-
+
205392001 = 23411731259
BaseRepresentation
bin11000011111000…
…00100010000001
3112022110222212011
430033200202001
5410040021001
632214132521
75042542333
oct1417404201
9468428764
10205392001
11a5a36061
1258951141
1333724639
141d3c7453
1513071d51
hexc3e0881

205392001 has 16 divisors (see below), whose sum is σ = 220993920. Its totient is φ = 190410880.

The previous prime is 205391999. The next prime is 205392017. The reversal of 205392001 is 100293502.

It is a cyclic number.

It is not a de Polignac number, because 205392001 - 21 = 205391999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205390001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162510 + ... + 163768.

It is an arithmetic number, because the mean of its divisors is an integer number (13812120).

Almost surely, 2205392001 is an apocalyptic number.

It is an amenable number.

205392001 is a deficient number, since it is larger than the sum of its proper divisors (15601919).

205392001 is a wasteful number, since it uses less digits than its factorization.

205392001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 205392001 is about 14331.5037940894. The cubic root of 205392001 is about 590.0124492250.

The spelling of 205392001 in words is "two hundred five million, three hundred ninety-two thousand, one".

Divisors: 1 23 41 173 943 1259 3979 7093 28957 51619 163139 217807 1187237 5009561 8930087 205392001