Search a number
-
+
471740983081 = 1787533170281
BaseRepresentation
bin1101101110101011111…
…01000010011100101001
31200002122102212220200021
412313111331002130221
530212111142424311
61000414222240441
746040116124044
oct6672575023451
91602572786607
10471740983081
11172078539865
1277515126121
133563c6813a4
1418b920cbc5b
15c40eca6171
hex6dd5f42729

471740983081 has 8 divisors (see below), whose sum is σ = 499547675304. Its totient is φ = 443940648960.

The previous prime is 471740983073. The next prime is 471740983141. The reversal of 471740983081 is 180389047174.

It can be written as a sum of positive squares in 4 ways, for example, as 277008531856 + 194732451225 = 526316^2 + 441285^2 .

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 471740983081 - 23 = 471740983073 is a prime.

It is a super-2 number, since 2×4717409830812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471740989081) 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, 1436340 + ... + 1733941.

It is an arithmetic number, because the mean of its divisors is an integer number (62443459413).

Almost surely, 2471740983081 is an apocalyptic number.

It is an amenable number.

471740983081 is a deficient number, since it is larger than the sum of its proper divisors (27806692223).

471740983081 is a wasteful number, since it uses less digits than its factorization.

471740983081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179051.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 471740983081 in words is "four hundred seventy-one billion, seven hundred forty million, nine hundred eighty-three thousand, eighty-one".

Divisors: 1 17 8753 148801 3170281 53894777 27749469593 471740983081