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51114020 = 2253769073
BaseRepresentation
bin1100001011111…
…1000000100100
310120011212020212
43002333000210
5101041122040
65023314552
71160314316
oct302770044
9116155225
1051114020
11269417a1
121514ba58
13a7884a9
146b077b6
154749d65
hex30bf024

51114020 has 24 divisors (see below), whose sum is σ = 110242104. Its totient is φ = 19892736.

The previous prime is 51113989. The next prime is 51114023. The reversal of 51114020 is 2041115.

It can be written as a sum of positive squares in 4 ways, for example, as 16516096 + 34597924 = 4064^2 + 5882^2 .

It is a super-2 number, since 2×511140202 = 5225286081120800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51113986 and 51114004.

It is not an unprimeable number, because it can be changed into a prime (51114023) by changing a digit.

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, 33797 + ... + 35276.

It is an arithmetic number, because the mean of its divisors is an integer number (4593421).

Almost surely, 251114020 is an apocalyptic number.

It is an amenable number.

51114020 is an abundant number, since it is smaller than the sum of its proper divisors (59128084).

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

51114020 is a wasteful number, since it uses less digits than its factorization.

51114020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69119 (or 69117 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 51114020 is about 7149.4069684135. The cubic root of 51114020 is about 371.1191340797.

Adding to 51114020 its reverse (2041115), we get a palindrome (53155135).

The spelling of 51114020 in words is "fifty-one million, one hundred fourteen thousand, twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 69073 138146 276292 345365 690730 1381460 2555701 5111402 10222804 12778505 25557010 51114020