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51483544427 = 719880343973
BaseRepresentation
bin101111111100101010…
…001000101101101011
311220212222101000222202
4233330222020231223
51320414241410202
635352355010415
73501544623110
oct577452105553
9156788330882
1051483544427
111a91a133a27
129b89899a0b
134b1621cc73
1426c578c907
151514c3d802
hexbfca88b6b

51483544427 has 16 divisors (see below), whose sum is σ = 61943535360. Its totient is φ = 41800486752.

The previous prime is 51483544417. The next prime is 51483544477. The reversal of 51483544427 is 72444538415.

It is a cyclic number.

It is not a de Polignac number, because 51483544427 - 218 = 51483282283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51483544417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1148813 + ... + 1192785.

It is an arithmetic number, because the mean of its divisors is an integer number (3871470960).

Almost surely, 251483544427 is an apocalyptic number.

51483544427 is a deficient number, since it is larger than the sum of its proper divisors (10459990933).

51483544427 is a wasteful number, since it uses less digits than its factorization.

51483544427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52802.

The product of its digits is 2150400, while the sum is 47.

The spelling of 51483544427 in words is "fifty-one billion, four hundred eighty-three million, five hundred forty-four thousand, four hundred twenty-seven".

Divisors: 1 7 19 133 8803 43973 61621 167257 307811 835487 1170799 5848409 387094319 2709660233 7354792061 51483544427