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51324201 = 3223247943
BaseRepresentation
bin1100001111001…
…0010100101001
310120120112120100
43003302110221
5101114333301
65032020013
71162151145
oct303622451
9116515510
1051324201
1126a756a5
1215231609
13a830066
146b60225
15478c286
hex30f2529

51324201 has 12 divisors (see below), whose sum is σ = 77358528. Its totient is φ = 32728344.

The previous prime is 51324199. The next prime is 51324209. The reversal of 51324201 is 10242315.

It is not a de Polignac number, because 51324201 - 21 = 51324199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51324209) 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, 123765 + ... + 124178.

It is an arithmetic number, because the mean of its divisors is an integer number (6446544).

Almost surely, 251324201 is an apocalyptic number.

It is an amenable number.

51324201 is a deficient number, since it is larger than the sum of its proper divisors (26034327).

51324201 is a wasteful number, since it uses less digits than its factorization.

51324201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247972 (or 247969 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 51324201 is about 7164.0910798230. The cubic root of 51324201 is about 371.6271194244.

Adding to 51324201 its reverse (10242315), we get a palindrome (61566516).

The spelling of 51324201 in words is "fifty-one million, three hundred twenty-four thousand, two hundred one".

Divisors: 1 3 9 23 69 207 247943 743829 2231487 5702689 17108067 51324201