Search a number
-
+
2340784831 = 72114342829
BaseRepresentation
bin1000101110000101…
…1000101010111111
320001010121012010111
42023201120222333
514243220103311
61024135050451
7112002225400
oct21341305277
96033535114
102340784831
11aa1348320
12553b10a27
132b3c54ca8
14182c479a7
15da77ad21
hex8b858abf

2340784831 has 12 divisors (see below), whose sum is σ = 2970495720. Its totient is φ = 1823987760.

The previous prime is 2340784811. The next prime is 2340784843. The reversal of 2340784831 is 1384870432.

It is not a de Polignac number, because 2340784831 - 25 = 2340784799 is a prime.

It is a super-2 number, since 2×23407848312 = 10958547250079397122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340784801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2170876 + ... + 2171953.

It is an arithmetic number, because the mean of its divisors is an integer number (247541310).

Almost surely, 22340784831 is an apocalyptic number.

2340784831 is a deficient number, since it is larger than the sum of its proper divisors (629710889).

2340784831 is a wasteful number, since it uses less digits than its factorization.

2340784831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342854 (or 4342847 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 2340784831 is about 48381.6580017676. The cubic root of 2340784831 is about 1327.7628040146.

The spelling of 2340784831 in words is "two billion, three hundred forty million, seven hundred eighty-four thousand, eight hundred thirty-one".

Divisors: 1 7 11 49 77 539 4342829 30399803 47771119 212798621 334397833 2340784831