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51126031 = 1119723593
BaseRepresentation
bin1100001100000…
…1111100001111
310120012110201201
43003001330033
5101042013111
65023450331
71160364325
oct303017417
9116173651
1051126031
112694a820
12151569a7
13a790ab8
146b0bd15
15474d6c1
hex30c1f0f

51126031 has 8 divisors (see below), whose sum is σ = 56059344. Its totient is φ = 46240320.

The previous prime is 51126029. The next prime is 51126121. The reversal of 51126031 is 13062115.

51126031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51126031 - 21 = 51126029 is a prime.

It is a super-2 number, since 2×511260312 = 5227742091625922, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51126331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9630 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (7007418).

Almost surely, 251126031 is an apocalyptic number.

51126031 is a deficient number, since it is larger than the sum of its proper divisors (4933313).

51126031 is a wasteful number, since it uses less digits than its factorization.

51126031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23801.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 51126031 is about 7150.2469188134. The cubic root of 51126031 is about 371.1482008785.

Adding to 51126031 its reverse (13062115), we get a palindrome (64188146).

The spelling of 51126031 in words is "fifty-one million, one hundred twenty-six thousand, thirty-one".

Divisors: 1 11 197 2167 23593 259523 4647821 51126031