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51280797134 = 273662914081
BaseRepresentation
bin101111110000100100…
…101101110111001110
311220100211212101222202
4233300210231313032
51320010341002014
635320313241502
73463533404120
oct576044556716
9156324771882
1051280797134
111a825744986
129b31a03292
134ab3213358
1426a6893210
1515020403de
hexbf092ddce

51280797134 has 8 divisors (see below), whose sum is σ = 87909937968. Its totient is φ = 21977484480.

The previous prime is 51280797133. The next prime is 51280797149. The reversal of 51280797134 is 43179708215.

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

It is a super-2 number, since 2×512807971342 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51280797131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831457027 + ... + 1831457054.

It is an arithmetic number, because the mean of its divisors is an integer number (10988742246).

Almost surely, 251280797134 is an apocalyptic number.

51280797134 is a deficient number, since it is larger than the sum of its proper divisors (36629140834).

51280797134 is a wasteful number, since it uses less digits than its factorization.

51280797134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662914090.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 51280797134 in words is "fifty-one billion, two hundred eighty million, seven hundred ninety-seven thousand, one hundred thirty-four".

Divisors: 1 2 7 14 3662914081 7325828162 25640398567 51280797134