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3143124321 = 31047708107
BaseRepresentation
bin1011101101011000…
…0100010101100001
322010001100020222220
42323112010111201
522414114434241
61235520021253
7140614054521
oct27326042541
98101306886
103143124321
111373236907
12738761829
133b124699c
1421b621681
15135e16166
hexbb584561

3143124321 has 4 divisors (see below), whose sum is σ = 4190832432. Its totient is φ = 2095416212.

The previous prime is 3143124319. The next prime is 3143124331. The reversal of 3143124321 is 1234213413.

It is a happy number.

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 3143124321 - 21 = 3143124319 is a prime.

It is a super-2 number, since 2×31431243212 = 19758460994523422082, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3143124291 and 3143124300.

It is not an unprimeable number, because it can be changed into a prime (3143124311) 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, 523854051 + ... + 523854056.

It is an arithmetic number, because the mean of its divisors is an integer number (1047708108).

Almost surely, 23143124321 is an apocalyptic number.

It is an amenable number.

3143124321 is a deficient number, since it is larger than the sum of its proper divisors (1047708111).

3143124321 is a wasteful number, since it uses less digits than its factorization.

3143124321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047708110.

The product of its digits is 1728, while the sum is 24.

The square root of 3143124321 is about 56063.5739228244. The cubic root of 3143124321 is about 1464.8298669820.

Adding to 3143124321 its reverse (1234213413), we get a palindrome (4377337734).

The spelling of 3143124321 in words is "three billion, one hundred forty-three million, one hundred twenty-four thousand, three hundred twenty-one".

Divisors: 1 3 1047708107 3143124321