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3143331497 = 11872648131
BaseRepresentation
bin1011101101011011…
…0110111010101001
322010001201210012002
42323112312322221
522414143101442
61235524300345
7140615606525
oct27326667251
98101653162
103143331497
111373368529
127388416b5
133b12ba087
1421b676d85
15135e57732
hexbb5b6ea9

3143331497 has 4 divisors (see below), whose sum is σ = 3145980816. Its totient is φ = 3140682180.

The previous prime is 3143331493. The next prime is 3143331523. The reversal of 3143331497 is 7941333413.

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 3143331497 - 22 = 3143331493 is a prime.

It is a super-2 number, since 2×31433314972 = 19761065800064522018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3143331497.

It is not an unprimeable number, because it can be changed into a prime (3143331491) 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, 1322879 + ... + 1325252.

It is an arithmetic number, because the mean of its divisors is an integer number (786495204).

Almost surely, 23143331497 is an apocalyptic number.

It is an amenable number.

3143331497 is a deficient number, since it is larger than the sum of its proper divisors (2649319).

3143331497 is a wasteful number, since it uses less digits than its factorization.

3143331497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649318.

The product of its digits is 81648, while the sum is 38.

The square root of 3143331497 is about 56065.4215805072. The cubic root of 3143331497 is about 1464.8620505563.

The spelling of 3143331497 in words is "three billion, one hundred forty-three million, three hundred thirty-one thousand, four hundred ninety-seven".

Divisors: 1 1187 2648131 3143331497