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51152214 = 2323935671
BaseRepresentation
bin1100001100100…
…0010101010110
310120020210122110
43003020111112
5101043332324
65024211450
71160533551
oct303102526
9116223573
1051152214
1126968463
1215169b86
13a79c9a9
146b17698
154756329
hex30c8556

51152214 has 16 divisors (see below), whose sum is σ = 102735360. Its totient is φ = 16978920.

The previous prime is 51152197. The next prime is 51152243. The reversal of 51152214 is 41225115.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 16402 + ... + 19269.

It is an arithmetic number, because the mean of its divisors is an integer number (6420960).

Almost surely, 251152214 is an apocalyptic number.

51152214 is an abundant number, since it is smaller than the sum of its proper divisors (51583146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51152214 is a wasteful number, since it uses less digits than its factorization.

51152214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35915.

The product of its digits is 400, while the sum is 21.

The square root of 51152214 is about 7152.0776002502. The cubic root of 51152214 is about 371.2115483535.

Adding to 51152214 its reverse (41225115), we get a palindrome (92377329).

It can be divided in two parts, 511 and 52214, that added together give a palindrome (52725).

The spelling of 51152214 in words is "fifty-one million, one hundred fifty-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 239 478 717 1434 35671 71342 107013 214026 8525369 17050738 25576107 51152214