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53111230 = 25171512069
BaseRepresentation
bin1100101010011…
…0100110111110
310200221022220121
43022212212332
5102044024410
65134205154
71213303144
oct312464676
9120838817
1053111230
1127a86287
12159537ba
13b007583
1470a7594
1549e19da
hex32a69be

53111230 has 32 divisors (see below), whose sum is σ = 101943360. Its totient is φ = 19852800.

The previous prime is 53111203. The next prime is 53111237. The reversal of 53111230 is 3211135.

It is a super-2 number, since 2×531112302 = 5641605504225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53111237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24636 + ... + 26704.

It is an arithmetic number, because the mean of its divisors is an integer number (3185730).

Almost surely, 253111230 is an apocalyptic number.

53111230 is a deficient number, since it is larger than the sum of its proper divisors (48832130).

53111230 is a wasteful number, since it uses less digits than its factorization.

53111230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 53111230 is about 7287.7451931307. The cubic root of 53111230 is about 375.8911664413.

Adding to 53111230 its reverse (3211135), we get a palindrome (56322365).

The spelling of 53111230 in words is "fifty-three million, one hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 85 151 170 302 755 1510 2069 2567 4138 5134 10345 12835 20690 25670 35173 70346 175865 312419 351730 624838 1562095 3124190 5311123 10622246 26555615 53111230