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423031 = 7223271
BaseRepresentation
bin1100111010001110111
3210111021211
41213101313
5102014111
613022251
73411220
oct1472167
9714254
10423031
11269914
12184987
1311a71b
14b0247
1585521
hex67477

423031 has 8 divisors (see below), whose sum is σ = 487424. Its totient is φ = 359640.

The previous prime is 423019. The next prime is 423043. The reversal of 423031 is 130324.

It is an interprime number because it is at equal distance from previous prime (423019) and next prime (423043).

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

It is a cyclic number.

It is not a de Polignac number, because 423031 - 215 = 390263 is a prime.

It is a super-2 number, since 2×4230312 = 357910453922, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423001) 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, 1426 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (60928).

2423031 is an apocalyptic number.

423031 is a deficient number, since it is larger than the sum of its proper divisors (64393).

423031 is a wasteful number, since it uses less digits than its factorization.

423031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 423031 is about 650.4083332799. The cubic root of 423031 is about 75.0684412287.

Adding to 423031 its reverse (130324), we get a palindrome (553355).

The spelling of 423031 in words is "four hundred twenty-three thousand, thirty-one".

Divisors: 1 7 223 271 1561 1897 60433 423031