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51025125130 = 2575313753403
BaseRepresentation
bin101111100001010101…
…011001111100001010
311212201000202220221021
4233201111121330022
51313444413001010
635235101303054
73454310256520
oct574125317412
9155630686837
1051025125130
111a704397801
129a80264a8a
134a72266045
14268093c310
1514d988a8da
hexbe1559f0a

51025125130 has 32 divisors (see below), whose sum is σ = 106946469504. Its totient is φ = 17164245696.

The previous prime is 51025125103. The next prime is 51025125161. The reversal of 51025125130 is 3152152015.

It is a junction number, because it is equal to n+sod(n) for n = 51025125095 and 51025125104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6872992 + ... + 6880411.

It is an arithmetic number, because the mean of its divisors is an integer number (3342077172).

Almost surely, 251025125130 is an apocalyptic number.

51025125130 is an abundant number, since it is smaller than the sum of its proper divisors (55921344374).

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

51025125130 is a wasteful number, since it uses less digits than its factorization.

51025125130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13753470.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 51025125130 its reverse (3152152015), we get a palindrome (54177277145).

The spelling of 51025125130 in words is "fifty-one billion, twenty-five million, one hundred twenty-five thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 530 742 1855 3710 13753403 27506806 68767015 96273821 137534030 192547642 481369105 728930359 962738210 1457860718 3644651795 5102512513 7289303590 10205025026 25512562565 51025125130