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801231 = 3409653
BaseRepresentation
bin11000011100111001111
31111201002020
43003213033
5201114411
625101223
76544644
oct3034717
91451066
10801231
114a7a82
12327813
13220902
1416bdcb
1510c606
hexc39cf

801231 has 8 divisors (see below), whose sum is σ = 1072560. Its totient is φ = 532032.

The previous prime is 801217. The next prime is 801247. The reversal of 801231 is 132108.

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 801231 - 27 = 801103 is a prime.

It is a super-2 number, since 2×8012312 = 1283942230722, which contains 22 as substring.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 801231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901 + ... + 1553.

It is an arithmetic number, because the mean of its divisors is an integer number (134070).

2801231 is an apocalyptic number.

801231 is a deficient number, since it is larger than the sum of its proper divisors (271329).

801231 is a wasteful number, since it uses less digits than its factorization.

801231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 801231 is about 895.1150764008. The cubic root of 801231 is about 92.8793672361.

Adding to 801231 its reverse (132108), we get a palindrome (933339).

The spelling of 801231 in words is "eight hundred one thousand, two hundred thirty-one".

Divisors: 1 3 409 653 1227 1959 267077 801231