Search a number
-
+
6460681015 = 531251166063
BaseRepresentation
bin1100000010001011…
…00010101100110111
3121200020220121020001
412001011202230313
5101212413243030
62545030452131
7316046611465
oct60105425467
917606817201
106460681015
1128159822a8
121303804047
137bc665299
1445408b835
1527c2d5cca
hex181162b37

6460681015 has 16 divisors (see below), whose sum is σ = 8034840576. Its totient is φ = 4981860000.

The previous prime is 6460681013. The next prime is 6460681057. The reversal of 6460681015 is 5101860646.

It is not a de Polignac number, because 6460681015 - 21 = 6460681013 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 (6460681013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44127 + ... + 121936.

It is an arithmetic number, because the mean of its divisors is an integer number (502177536).

Almost surely, 26460681015 is an apocalyptic number.

6460681015 is a deficient number, since it is larger than the sum of its proper divisors (1574159561).

6460681015 is a wasteful number, since it uses less digits than its factorization.

6460681015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166350.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 6460681015 is about 80378.3616093287. The cubic root of 6460681015 is about 1862.4849254219.

The spelling of 6460681015 in words is "six billion, four hundred sixty million, six hundred eighty-one thousand, fifteen".

Divisors: 1 5 31 155 251 1255 7781 38905 166063 830315 5147953 25739765 41681813 208409065 1292136203 6460681015