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205001030 = 25131576931
BaseRepresentation
bin11000011100000…
…01000101000110
3112021202010112202
430032001011012
5404440013110
632201514502
75036323433
oct1416010506
9467663482
10205001030
11a5799343
12587a2a32
13336186b0
141d324b8a
1512ee60a5
hexc381146

205001030 has 16 divisors (see below), whose sum is σ = 397386864. Its totient is φ = 75692640.

The previous prime is 205000997. The next prime is 205001033. The reversal of 205001030 is 30100502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205001033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788336 + ... + 788595.

It is an arithmetic number, because the mean of its divisors is an integer number (24836679).

Almost surely, 2205001030 is an apocalyptic number.

205001030 is a deficient number, since it is larger than the sum of its proper divisors (192385834).

205001030 is a wasteful number, since it uses less digits than its factorization.

205001030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576951.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 205001030 is about 14317.8570323914. The cubic root of 205001030 is about 589.6378415173.

Adding to 205001030 its reverse (30100502), we get a palindrome (235101532).

The spelling of 205001030 in words is "two hundred five million, one thousand, thirty".

Divisors: 1 2 5 10 13 26 65 130 1576931 3153862 7884655 15769310 20500103 41000206 102500515 205001030