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232813 = 779421
BaseRepresentation
bin111000110101101101
3102211100201
4320311231
524422223
64553501
71656520
oct706555
9384321
10232813
11149a09
12b2891
1381c79
1460bb7
1548ead
hex38d6d

232813 has 8 divisors (see below), whose sum is σ = 270080. Its totient is φ = 196560.

The previous prime is 232811. The next prime is 232819. The reversal of 232813 is 318232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 232813 - 21 = 232811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343 + ... + 763.

It is an arithmetic number, because the mean of its divisors is an integer number (33760).

2232813 is an apocalyptic number.

It is an amenable number.

232813 is a deficient number, since it is larger than the sum of its proper divisors (37267).

232813 is an equidigital number, since it uses as much as digits as its factorization.

232813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507.

The product of its digits is 288, while the sum is 19.

The square root of 232813 is about 482.5069947680. The cubic root of 232813 is about 61.5180285127.

The spelling of 232813 in words is "two hundred thirty-two thousand, eight hundred thirteen".

Divisors: 1 7 79 421 553 2947 33259 232813