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3144032431 = 31101420401
BaseRepresentation
bin1011101101100110…
…0010000010101111
322010010001101200121
42323121202002233
522414333014211
61235551305411
7140624556211
oct27331420257
98103041617
103144032431
1113737a7111
12738b1b267
133b14a4127
1421b7ba5b1
15136045271
hexbb6620af

3144032431 has 4 divisors (see below), whose sum is σ = 3245452864. Its totient is φ = 3042612000.

The previous prime is 3144032407. The next prime is 3144032443. The reversal of 3144032431 is 1342304413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3144032431 - 25 = 3144032399 is a prime.

It is a super-2 number, since 2×31440324312 = 19769879854359539522, 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 = 3144032396 and 3144032405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144032491) 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, 50710170 + ... + 50710231.

It is an arithmetic number, because the mean of its divisors is an integer number (811363216).

Almost surely, 23144032431 is an apocalyptic number.

3144032431 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3144032431 is a deficient number, since it is larger than the sum of its proper divisors (101420433).

3144032431 is a wasteful number, since it uses less digits than its factorization.

3144032431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101420432.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 3144032431 is about 56071.6722686242. The cubic root of 3144032431 is about 1464.9709260500.

Adding to 3144032431 its reverse (1342304413), we get a palindrome (4486336844).

The spelling of 3144032431 in words is "three billion, one hundred forty-four million, thirty-two thousand, four hundred thirty-one".

Divisors: 1 31 101420401 3144032431