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52209201 = 3112143827
BaseRepresentation
bin1100011100101…
…0011000110001
310122020111120010
43013022120301
5101331143301
65103005133
71202525262
oct307123061
9118214503
1052209201
112751a600
12155997a9
13aa7cb25
146d10969
1548b45d6
hex31ca631

52209201 has 12 divisors (see below), whose sum is σ = 76516496. Its totient is φ = 31641720.

The previous prime is 52209197. The next prime is 52209217. The reversal of 52209201 is 10290225.

It is not a de Polignac number, because 52209201 - 22 = 52209197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52209221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71551 + ... + 72276.

Almost surely, 252209201 is an apocalyptic number.

It is an amenable number.

52209201 is a deficient number, since it is larger than the sum of its proper divisors (24307295).

52209201 is a wasteful number, since it uses less digits than its factorization.

52209201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143852 (or 143841 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 52209201 is about 7225.5934704355. The cubic root of 52209201 is about 373.7509876448.

Adding to 52209201 its reverse (10290225), we get a palindrome (62499426).

The spelling of 52209201 in words is "fifty-two million, two hundred nine thousand, two hundred one".

Divisors: 1 3 11 33 121 363 143827 431481 1582097 4746291 17403067 52209201