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3140240331 = 31447723391
BaseRepresentation
bin1011101100101100…
…0100001111001011
322002211220201220110
42323023010033023
522412400142311
61235334125403
7140550413424
oct27313041713
98084821813
103140240331
111371647048
127377b0863
133b0777097
1421b0b064b
15135a468a6
hexbb2c43cb

3140240331 has 8 divisors (see below), whose sum is σ = 4189886464. Its totient is φ = 2092043880.

The previous prime is 3140240329. The next prime is 3140240339. The reversal of 3140240331 is 1330420413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3140240331 - 21 = 3140240329 is a prime.

It is a super-2 number, since 2×31402403312 = 19722218672877979122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3140240298 and 3140240307.

It is not an unprimeable number, because it can be changed into a prime (3140240339) 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 7 ways as a sum of consecutive naturals, for example, 357355 + ... + 366036.

It is an arithmetic number, because the mean of its divisors is an integer number (523735808).

Almost surely, 23140240331 is an apocalyptic number.

3140240331 is a deficient number, since it is larger than the sum of its proper divisors (1049646133).

3140240331 is a wasteful number, since it uses less digits than its factorization.

3140240331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724841.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3140240331 is about 56037.8473087609. The cubic root of 3140240331 is about 1464.3817091405.

Adding to 3140240331 its reverse (1330420413), we get a palindrome (4470660744).

The spelling of 3140240331 in words is "three billion, one hundred forty million, two hundred forty thousand, three hundred thirty-one".

Divisors: 1 3 1447 4341 723391 2170173 1046746777 3140240331