Search a number
-
+
53236231 = 175953077
BaseRepresentation
bin1100101100010…
…1001000000111
310201011200101021
43023011020013
5102112024411
65141012011
71214333446
oct313051007
9121150337
1053236231
1128061194
12159b4007
13b04c439
1470dad5d
154a18a71
hex32c5207

53236231 has 8 divisors (see below), whose sum is σ = 57324240. Its totient is φ = 49254528.

The previous prime is 53236223. The next prime is 53236243. The reversal of 53236231 is 13263235.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53236231 - 23 = 53236223 is a prime.

It is a super-2 number, since 2×532362312 = 5668192582170722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53236196 and 53236205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53236201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25536 + ... + 27541.

It is an arithmetic number, because the mean of its divisors is an integer number (7165530).

Almost surely, 253236231 is an apocalyptic number.

53236231 is a deficient number, since it is larger than the sum of its proper divisors (4088009).

53236231 is a wasteful number, since it uses less digits than its factorization.

53236231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53153.

The product of its digits is 3240, while the sum is 25.

The square root of 53236231 is about 7296.3162623340. The cubic root of 53236231 is about 376.1858307876.

Adding to 53236231 its reverse (13263235), we get a palindrome (66499466).

It can be divided in two parts, 532 and 36231, that added together give a palindrome (36763).

The spelling of 53236231 in words is "fifty-three million, two hundred thirty-six thousand, two hundred thirty-one".

Divisors: 1 17 59 1003 53077 902309 3131543 53236231