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417052681 = 1393000379
BaseRepresentation
bin11000110110111…
…011100000001001
31002001202110201121
4120312323200021
51323231141211
6105214515241
713222614013
oct3066734011
91061673647
10417052681
111a4462941
12b7805b21
1368532346
143d5631b3
1526931271
hex18dbb809

417052681 has 4 divisors (see below), whose sum is σ = 420053200. Its totient is φ = 414052164.

The previous prime is 417052663. The next prime is 417052693. The reversal of 417052681 is 186250714.

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 a de Polignac number, because none of the positive numbers 2k-417052681 is a prime.

It is a super-2 number, since 2×4170526812 = 347865877458575522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (417052631) 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, 1500051 + ... + 1500328.

It is an arithmetic number, because the mean of its divisors is an integer number (105013300).

Almost surely, 2417052681 is an apocalyptic number.

It is an amenable number.

417052681 is a deficient number, since it is larger than the sum of its proper divisors (3000519).

417052681 is a wasteful number, since it uses less digits than its factorization.

417052681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000518.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 417052681 is about 20421.8677157600. The cubic root of 417052681 is about 747.1313714304.

The spelling of 417052681 in words is "four hundred seventeen million, fifty-two thousand, six hundred eighty-one".

Divisors: 1 139 3000379 417052681