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264230525 = 5213813017
BaseRepresentation
bin11111011111111…
…01011001111101
3200102012022010202
433233331121331
51020120334100
642115213245
76355631246
oct1757753175
9612168122
10264230525
11126173339
12745a7225
1342985a30
1427141ccd
15182e57d5
hexfbfd67d

264230525 has 12 divisors (see below), whose sum is σ = 352849812. Its totient is φ = 195123840.

The previous prime is 264230503. The next prime is 264230539. The reversal of 264230525 is 525032462.

It can be written as a sum of positive squares in 6 ways, for example, as 850084 + 263380441 = 922^2 + 16229^2 .

It is not a de Polignac number, because 264230525 - 222 = 260036221 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 406184 + ... + 406833.

It is an arithmetic number, because the mean of its divisors is an integer number (29404151).

Almost surely, 2264230525 is an apocalyptic number.

264230525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264230525 is a deficient number, since it is larger than the sum of its proper divisors (88619287).

264230525 is a wasteful number, since it uses less digits than its factorization.

264230525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813040 (or 813035 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 264230525 is about 16255.1691778339. The cubic root of 264230525 is about 641.6935331042.

Adding to 264230525 its reverse (525032462), we get a palindrome (789262987).

The spelling of 264230525 in words is "two hundred sixty-four million, two hundred thirty thousand, five hundred twenty-five".

Divisors: 1 5 13 25 65 325 813017 4065085 10569221 20325425 52846105 264230525