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205013112 = 23315754409
BaseRepresentation
bin11000011100001…
…00000001111000
3112021202202010020
430032010001320
5404440404422
632202050440
75036403603
oct1416040170
9467682106
10205013112
11a57a7427
12587a9a20
1333621045
141d32933a
1512ee995c
hexc384078

205013112 has 32 divisors (see below), whose sum is σ = 515806800. Its totient is φ = 67901184.

The previous prime is 205013111. The next prime is 205013113. The reversal of 205013112 is 211310502.

It is an interprime number because it is at equal distance from previous prime (205013111) and next prime (205013113).

It is a junction number, because it is equal to n+sod(n) for n = 205013091 and 205013100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205013111) 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, 23437 + ... + 30972.

Almost surely, 2205013112 is an apocalyptic number.

It is an amenable number.

205013112 is an abundant number, since it is smaller than the sum of its proper divisors (310793688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205013112 is a wasteful number, since it uses less digits than its factorization.

205013112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54575 (or 54571 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 205013112 is about 14318.2789468567. The cubic root of 205013112 is about 589.6494249785.

Adding to 205013112 its reverse (211310502), we get a palindrome (416323614).

The spelling of 205013112 in words is "two hundred five million, thirteen thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 157 314 471 628 942 1256 1884 3768 54409 108818 163227 217636 326454 435272 652908 1305816 8542213 17084426 25626639 34168852 51253278 68337704 102506556 205013112