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51103245124 = 221011062711903
BaseRepresentation
bin101111100101111111…
…011010001101000100
311212220110202211102101
4233211333122031010
51314124412320444
635250531521444
73456246262561
oct574577321504
9155813684371
1051103245124
111a7444a4488
129aa2459284
134a854b87a9
14268b075868
1514e166c3d4
hexbe5fda344

51103245124 has 24 divisors (see below), whose sum is σ = 90332218368. Its totient is φ = 25294130400.

The previous prime is 51103245121. The next prime is 51103245197. The reversal of 51103245124 is 42154230115.

It is a super-2 number, since 2×511032451242 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51103245092 and 51103245101.

It is not an unprimeable number, because it can be changed into a prime (51103245121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4287357 + ... + 4299259.

It is an arithmetic number, because the mean of its divisors is an integer number (3763842432).

Almost surely, 251103245124 is an apocalyptic number.

It is an amenable number.

51103245124 is a deficient number, since it is larger than the sum of its proper divisors (39228973244).

51103245124 is a wasteful number, since it uses less digits than its factorization.

51103245124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22635 (or 22633 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 51103245124 its reverse (42154230115), we get a palindrome (93257475239).

The spelling of 51103245124 in words is "fifty-one billion, one hundred three million, two hundred forty-five thousand, one hundred twenty-four".

Divisors: 1 2 4 101 202 404 10627 11903 21254 23806 42508 47612 1073327 1202203 2146654 2404406 4293308 4808812 126493181 252986362 505972724 12775811281 25551622562 51103245124