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51229833961 = 1492803122663
BaseRepresentation
bin101111101101100010…
…010011101011101001
311220020021222012122211
4233231202103223221
51314404314141321
635311253045121
73462344255335
oct575542235351
9156207865584
1051229833961
111a7a99a6559
129b189267a1
134aa57ab727
14269dbc87c5
1514ec8250e1
hexbed893ae9

51229833961 has 8 divisors (see below), whose sum is σ = 51592478400. Its totient is φ = 50867440752.

The previous prime is 51229833899. The next prime is 51229834009. The reversal of 51229833961 is 16933892215.

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 51229833961 - 215 = 51229801193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51229933961) 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, 356316 + ... + 478978.

It is an arithmetic number, because the mean of its divisors is an integer number (6449059800).

Almost surely, 251229833961 is an apocalyptic number.

It is an amenable number.

51229833961 is a deficient number, since it is larger than the sum of its proper divisors (362644439).

51229833961 is a wasteful number, since it uses less digits than its factorization.

51229833961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125615.

The product of its digits is 699840, while the sum is 49.

The spelling of 51229833961 in words is "fifty-one billion, two hundred twenty-nine million, eight hundred thirty-three thousand, nine hundred sixty-one".

Divisors: 1 149 2803 122663 417647 18276787 343824389 51229833961