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51224983 = 372575387
BaseRepresentation
bin1100001101101…
…0000110010111
310120101111110121
43003122012113
5101103144413
65025532411
71161255655
oct303320627
9116344417
1051224983
1126a080a7
12151a4107
13a7c6b54
146b35dd5
15476cb8d
hex30da197

51224983 has 8 divisors (see below), whose sum is σ = 52823952. Its totient is φ = 49637376.

The previous prime is 51224963. The next prime is 51225023. The reversal of 51224983 is 38942215.

51224983 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 51224983 - 25 = 51224951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51224923) 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, 6816 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (6602994).

Almost surely, 251224983 is an apocalyptic number.

51224983 is a deficient number, since it is larger than the sum of its proper divisors (1598969).

51224983 is a wasteful number, since it uses less digits than its factorization.

51224983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681.

The product of its digits is 17280, while the sum is 34.

The square root of 51224983 is about 7157.1630552894. The cubic root of 51224983 is about 371.3874931255.

The spelling of 51224983 in words is "fifty-one million, two hundred twenty-four thousand, nine hundred eighty-three".

Divisors: 1 37 257 5387 9509 199319 1384459 51224983