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204213025 = 5279103399
BaseRepresentation
bin11000010110000…
…00101100100001
3112020021002121101
430023000230201
5404234304100
632132554401
75026532152
oct1413005441
9466232541
10204213025
11a53002a5
1258482a01
1333400b13
141d19b929
1512ddc86a
hexc2c0b21

204213025 has 12 divisors (see below), whose sum is σ = 256432000. Its totient is φ = 161300880.

The previous prime is 204213019. The next prime is 204213071. The reversal of 204213025 is 520312402.

It is not a de Polignac number, because 204213025 - 23 = 204213017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204212993 and 204213011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49725 + ... + 53674.

Almost surely, 2204213025 is an apocalyptic number.

204213025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

204213025 is a deficient number, since it is larger than the sum of its proper divisors (52218975).

204213025 is a wasteful number, since it uses less digits than its factorization.

204213025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103488 (or 103483 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 204213025 is about 14290.3122779035. The cubic root of 204213025 is about 588.8813669714.

Adding to 204213025 its reverse (520312402), we get a palindrome (724525427).

The spelling of 204213025 in words is "two hundred four million, two hundred thirteen thousand, twenty-five".

Divisors: 1 5 25 79 395 1975 103399 516995 2584975 8168521 40842605 204213025