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431941 = 617397
BaseRepresentation
bin1101001011101000101
3210221111211
41221131011
5102310231
613131421
73446206
oct1513505
9727454
10431941
11275584
12189b71
131217b3
14b35ad
1587eb1
hex69745

431941 has 8 divisors (see below), whose sum is σ = 449624. Its totient is φ = 414720.

The previous prime is 431933. The next prime is 431947. The reversal of 431941 is 149134.

It can be written as a sum of positive squares in 4 ways, for example, as 4225 + 427716 = 65^2 + 654^2 .

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

It is a 5-Lehmer number, since φ(431941) divides (431941-1)5.

It is a cyclic number.

It is not a de Polignac number, because 431941 - 23 = 431933 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 (431947) 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, 4405 + ... + 4501.

It is an arithmetic number, because the mean of its divisors is an integer number (56203).

2431941 is an apocalyptic number.

It is an amenable number.

431941 is a deficient number, since it is larger than the sum of its proper divisors (17683).

431941 is an equidigital number, since it uses as much as digits as its factorization.

431941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231.

The product of its digits is 432, while the sum is 22.

The square root of 431941 is about 657.2221846530. Note that the first 3 decimals coincide. The cubic root of 431941 is about 75.5918213860.

The spelling of 431941 in words is "four hundred thirty-one thousand, nine hundred forty-one".

Divisors: 1 61 73 97 4453 5917 7081 431941