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423881 = 835107
BaseRepresentation
bin1100111011111001001
3210112110022
41213133021
5102031011
613030225
73413543
oct1473711
9715408
10423881
1126a517
12185375
1311ac23
14b0693
15858db
hex677c9

423881 has 4 divisors (see below), whose sum is σ = 429072. Its totient is φ = 418692.

The previous prime is 423869. The next prime is 423883. The reversal of 423881 is 188324.

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 423881 - 210 = 422857 is a prime.

It is a super-2 number, since 2×4238812 = 359350204322, 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 423881.

It is not an unprimeable number, because it can be changed into a prime (423883) 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, 2471 + ... + 2636.

It is an arithmetic number, because the mean of its divisors is an integer number (107268).

2423881 is an apocalyptic number.

It is an amenable number.

423881 is a deficient number, since it is larger than the sum of its proper divisors (5191).

423881 is an equidigital number, since it uses as much as digits as its factorization.

423881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190.

The product of its digits is 1536, while the sum is 26.

The square root of 423881 is about 651.0614410330. The cubic root of 423881 is about 75.1186861563.

The spelling of 423881 in words is "four hundred twenty-three thousand, eight hundred eighty-one".

Divisors: 1 83 5107 423881