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13320250 = 25353281
BaseRepresentation
bin110010110100…
…000000111010
3221001201221121
4302310000322
511402222000
61153255454
7221135356
oct62640072
927051847
1013320250
117578779
12456458a
1329b4c08
141aaa466
151281b1a
hexcb403a

13320250 has 16 divisors (see below), whose sum is σ = 24935976. Its totient is φ = 5328000.

The previous prime is 13320247. The next prime is 13320257. The reversal of 13320250 is 5202331.

It can be written as a sum of positive squares in 4 ways, for example, as 4157521 + 9162729 = 2039^2 + 3027^2 .

It is not an unprimeable number, because it can be changed into a prime (13320257) 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, 26391 + ... + 26890.

Almost surely, 213320250 is an apocalyptic number.

13320250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13320250 is a deficient number, since it is larger than the sum of its proper divisors (11615726).

13320250 is an equidigital number, since it uses as much as digits as its factorization.

13320250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53298 (or 53288 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 13320250 is about 3649.6917678072. The cubic root of 13320250 is about 237.0486348823.

Adding to 13320250 its reverse (5202331), we get a palindrome (18522581).

The spelling of 13320250 in words is "thirteen million, three hundred twenty thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 53281 106562 266405 532810 1332025 2664050 6660125 13320250