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13630252 = 2225713259
BaseRepresentation
bin110011111111…
…101100101100
3221122111012011
4303333230230
511442132002
61204051004
7223566226
oct63775454
927574164
1013630252
11776a679
124693a64
132a9304c
141b4b416
1512e38d7
hexcffb2c

13630252 has 12 divisors (see below), whose sum is σ = 23947560. Its totient is φ = 6788096.

The previous prime is 13630247. The next prime is 13630259. The reversal of 13630252 is 25203631.

It is not an unprimeable number, because it can be changed into a prime (13630259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5602 + ... + 7657.

It is an arithmetic number, because the mean of its divisors is an integer number (1995630).

Almost surely, 213630252 is an apocalyptic number.

It is an amenable number.

13630252 is a deficient number, since it is larger than the sum of its proper divisors (10317308).

13630252 is a wasteful number, since it uses less digits than its factorization.

13630252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13520 (or 13518 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 13630252 is about 3691.9171171628. The cubic root of 13630252 is about 238.8734938540.

Adding to 13630252 its reverse (25203631), we get a palindrome (38833883).

The spelling of 13630252 in words is "thirteen million, six hundred thirty thousand, two hundred fifty-two".

Divisors: 1 2 4 257 514 1028 13259 26518 53036 3407563 6815126 13630252