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231413829 = 377137943
BaseRepresentation
bin11011100101100…
…01100001000101
3121010110001002120
431302301201011
5433220220304
634544000153
75506661613
oct1562614105
9533401076
10231413829
111096996a9
1265600059
1338c3597a
1422a3c6b3
15154b20d9
hexdcb1845

231413829 has 4 divisors (see below), whose sum is σ = 308551776. Its totient is φ = 154275884.

The previous prime is 231413821. The next prime is 231413849. The reversal of 231413829 is 928314132.

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 231413829 - 23 = 231413821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231413829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231413821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38568969 + ... + 38568974.

It is an arithmetic number, because the mean of its divisors is an integer number (77137944).

Almost surely, 2231413829 is an apocalyptic number.

It is an amenable number.

231413829 is a deficient number, since it is larger than the sum of its proper divisors (77137947).

231413829 is an equidigital number, since it uses as much as digits as its factorization.

231413829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77137946.

The product of its digits is 10368, while the sum is 33.

The square root of 231413829 is about 15212.2920363764. The cubic root of 231413829 is about 613.9454278157.

The spelling of 231413829 in words is "two hundred thirty-one million, four hundred thirteen thousand, eight hundred twenty-nine".

Divisors: 1 3 77137943 231413829