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53032231 = 717445649
BaseRepresentation
bin1100101001001…
…1010100100111
310200210022112201
43022103110213
5102034012411
65132355331
71212523630
oct312232447
9120708481
1053032231
1127a3199a
1215915b47
13acaa625
147086887
1549c83c1
hex3293527

53032231 has 8 divisors (see below), whose sum is σ = 64173600. Its totient is φ = 42782208.

The previous prime is 53032193. The next prime is 53032283. The reversal of 53032231 is 13223035.

53032231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53032231 - 223 = 44643623 is a prime.

It is a super-2 number, since 2×530322312 = 5624835049674722, 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 = 53032199 and 53032208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53032831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222706 + ... + 222943.

It is an arithmetic number, because the mean of its divisors is an integer number (8021700).

Almost surely, 253032231 is an apocalyptic number.

53032231 is a deficient number, since it is larger than the sum of its proper divisors (11141369).

53032231 is a wasteful number, since it uses less digits than its factorization.

53032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445673.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 53032231 is about 7282.3231870056. The cubic root of 53032231 is about 375.7047039205.

Adding to 53032231 its reverse (13223035), we get a palindrome (66255266).

It can be divided in two parts, 530 and 32231, that added together give a square (32761 = 1812).

The spelling of 53032231 in words is "fifty-three million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 7 17 119 445649 3119543 7576033 53032231