Search a number
-
+
50717143755493 = 172882729336159
BaseRepresentation
bin10111000100000100000010…
…10101100110101011100101
320122120111210221122200020221
423202002001111212223211
523121422202300133433
6255511044552524341
713453123046650105
oct1342020125465345
9218514727580227
1050717143755493
1115184024502a56
1258313a49b06b1
13223b7b58a6b27
14c74a1972d205
155ce408d3872d
hex2e2081566ae5

50717143755493 has 4 divisors (see below), whose sum is σ = 50717174820480. Its totient is φ = 50717112690508.

The previous prime is 50717143755463. The next prime is 50717143755529. The reversal of 50717143755493 is 39455734171705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50717143755493 - 221 = 50717141658341 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 (50717143755463) 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, 12939253 + ... + 16396906.

It is an arithmetic number, because the mean of its divisors is an integer number (12679293705120).

Almost surely, 250717143755493 is an apocalyptic number.

It is an amenable number.

50717143755493 is a deficient number, since it is larger than the sum of its proper divisors (31064987).

50717143755493 is a wasteful number, since it uses less digits than its factorization.

50717143755493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31064986.

The product of its (nonzero) digits is 55566000, while the sum is 61.

The spelling of 50717143755493 in words is "fifty trillion, seven hundred seventeen billion, one hundred forty-three million, seven hundred fifty-five thousand, four hundred ninety-three".

Divisors: 1 1728827 29336159 50717143755493