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51043304 = 23131732837
BaseRepresentation
bin1100001010110…
…1101111101000
310120001021020202
43002231233220
5101031341204
65022011332
71156601204
oct302555750
9116037222
1051043304
11268a3654
1215116b48
13a762250
146ac9b04
154733e1e
hex30adbe8

51043304 has 32 divisors (see below), whose sum is σ = 103700520. Its totient is φ = 23414016.

The previous prime is 51043273. The next prime is 51043327. The reversal of 51043304 is 40334015.

It can be written as a sum of positive squares in 4 ways, for example, as 32467204 + 18576100 = 5698^2 + 4310^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16574 + ... + 19410.

Almost surely, 251043304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51043304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51850260).

51043304 is an abundant number, since it is smaller than the sum of its proper divisors (52657216).

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

51043304 is a wasteful number, since it uses less digits than its factorization.

51043304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029 (or 3025 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 51043304 is about 7144.4596716617. The cubic root of 51043304 is about 370.9479079148.

Adding to 51043304 its reverse (40334015), we get a palindrome (91377319).

The spelling of 51043304 in words is "fifty-one million, forty-three thousand, three hundred four".

Divisors: 1 2 4 8 13 26 52 104 173 346 692 1384 2249 2837 4498 5674 8996 11348 17992 22696 36881 73762 147524 295048 490801 981602 1963204 3926408 6380413 12760826 25521652 51043304