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3140031 = 31046677
BaseRepresentation
bin1011111110100110111111
312220112022110
423332212333
51300440111
6151145103
735455416
oct13764677
95815273
103140031
111855174
121075193
1385c30b
145ba47d
154205a6
hex2fe9bf

3140031 has 4 divisors (see below), whose sum is σ = 4186712. Its totient is φ = 2093352.

The previous prime is 3139993. The next prime is 3140041. The reversal of 3140031 is 1300413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1300413 = 3433471.

It is not a de Polignac number, because 3140031 - 26 = 3139967 is a prime.

It is a super-2 number, since 2×31400312 = 19719589361922, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3139989 and 3140016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140041) 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 3 ways as a sum of consecutive naturals, for example, 523336 + ... + 523341.

It is an arithmetic number, because the mean of its divisors is an integer number (1046678).

Almost surely, 23140031 is an apocalyptic number.

3140031 is a deficient number, since it is larger than the sum of its proper divisors (1046681).

3140031 is a wasteful number, since it uses less digits than its factorization.

3140031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046680.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3140031 is about 1772.0132618014. The cubic root of 3140031 is about 146.4349169455.

Adding to 3140031 its reverse (1300413), we get a palindrome (4440444).

The spelling of 3140031 in words is "three million, one hundred forty thousand, thirty-one".

Divisors: 1 3 1046677 3140031