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51077247293 = 683155947969
BaseRepresentation
bin101111100100011100…
…001111000100111101
311212211122212000002202
4233210130033010331
51314101233403133
635244202401245
73455512303262
oct574434170475
9155748760082
1051077247293
111a730857976
129a95800225
134a7ccb5367
142687829269
1514de2342e8
hexbe470f13d

51077247293 has 8 divisors (see below), whose sum is σ = 51185908800. Its totient is φ = 50968686208.

The previous prime is 51077247229. The next prime is 51077247311. The reversal of 51077247293 is 39274277015.

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 51077247293 - 26 = 51077247229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51077240293) 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, 1040813 + ... + 1088781.

It is an arithmetic number, because the mean of its divisors is an integer number (6398238600).

Almost surely, 251077247293 is an apocalyptic number.

It is an amenable number.

51077247293 is a deficient number, since it is larger than the sum of its proper divisors (108661507).

51077247293 is a wasteful number, since it uses less digits than its factorization.

51077247293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50211.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 51077247293 in words is "fifty-one billion, seventy-seven million, two hundred forty-seven thousand, two hundred ninety-three".

Divisors: 1 683 1559 47969 1064797 32762827 74783671 51077247293