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52207331 = 1146710163
BaseRepresentation
bin1100011100100…
…1111011100011
310122020101222212
43013021323203
5101331113311
65102552335
71202516651
oct307117343
9118211885
1052207331
1127519160
12155986ab
13aa7c017
146d0ddd1
1548b3c8b
hex31c9ee3

52207331 has 8 divisors (see below), whose sum is σ = 57081024. Its totient is φ = 47354920.

The previous prime is 52207313. The next prime is 52207343. The reversal of 52207331 is 13370225.

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 52207331 - 222 = 48013027 is a prime.

It is a super-2 number, since 2×522073312 = 5451210820287122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52207297 and 52207306.

It is not an unprimeable number, because it can be changed into a prime (52207361) 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, 56 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (7135128).

Almost surely, 252207331 is an apocalyptic number.

52207331 is a deficient number, since it is larger than the sum of its proper divisors (4873693).

52207331 is a wasteful number, since it uses less digits than its factorization.

52207331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10641.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 52207331 is about 7225.4640681412. The cubic root of 52207331 is about 373.7465253235.

Adding to 52207331 its reverse (13370225), we get a palindrome (65577556).

The spelling of 52207331 in words is "fifty-two million, two hundred seven thousand, three hundred thirty-one".

Divisors: 1 11 467 5137 10163 111793 4746121 52207331