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231741031 = 2310075697
BaseRepresentation
bin11011101000000…
…01011001100111
3121011001122221011
431310001121213
5433311203111
634555003051
75512523554
oct1564013147
9534048834
10231741031
111098a2515
1265739487
133901b892
1422ac5a2b
1515529021
hexdd01667

231741031 has 4 divisors (see below), whose sum is σ = 241816752. Its totient is φ = 221665312.

The previous prime is 231741017. The next prime is 231741071. The reversal of 231741031 is 130147132.

231741031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231741031 - 215 = 231708263 is a prime.

It is a super-2 number, since 2×2317410312 = 107407810897885922, 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 = 231740993 and 231741011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231741071) 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, 5037826 + ... + 5037871.

It is an arithmetic number, because the mean of its divisors is an integer number (60454188).

Almost surely, 2231741031 is an apocalyptic number.

231741031 is a deficient number, since it is larger than the sum of its proper divisors (10075721).

231741031 is a wasteful number, since it uses less digits than its factorization.

231741031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10075720.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 231741031 is about 15223.0427641783. The cubic root of 231741031 is about 614.2346493208.

Adding to 231741031 its reverse (130147132), we get a palindrome (361888163).

The spelling of 231741031 in words is "two hundred thirty-one million, seven hundred forty-one thousand, thirty-one".

Divisors: 1 23 10075697 231741031