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3144131421 = 31048043807
BaseRepresentation
bin1011101101100111…
…1010001101011101
322010010020102110220
42323121322031131
522414344201141
61235553351553
7140625450624
oct27331721535
98103212426
103144131421
111373864522
12738b685b9
133b150a1c2
1421b8046bb
15136064766
hexbb67a35d

3144131421 has 4 divisors (see below), whose sum is σ = 4192175232. Its totient is φ = 2096087612.

The previous prime is 3144131413. The next prime is 3144131443. The reversal of 3144131421 is 1241314413.

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 not a de Polignac number, because 3144131421 - 23 = 3144131413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3144131391 and 3144131400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144131461) 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, 524021901 + ... + 524021906.

It is an arithmetic number, because the mean of its divisors is an integer number (1048043808).

Almost surely, 23144131421 is an apocalyptic number.

It is an amenable number.

3144131421 is a deficient number, since it is larger than the sum of its proper divisors (1048043811).

3144131421 is a wasteful number, since it uses less digits than its factorization.

3144131421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048043810.

The product of its digits is 1152, while the sum is 24.

The square root of 3144131421 is about 56072.5549712156. The cubic root of 3144131421 is about 1464.9863007801.

Adding to 3144131421 its reverse (1241314413), we get a palindrome (4385445834).

The spelling of 3144131421 in words is "three billion, one hundred forty-four million, one hundred thirty-one thousand, four hundred twenty-one".

Divisors: 1 3 1048043807 3144131421