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110431001 = 868112721
BaseRepresentation
bin1101001010100…
…00101100011001
321200210110212002
412211100230121
5211232243001
614542530345
72510435162
oct645205431
9250713762
10110431001
115737649a
1230b969b5
1319b565b5
1410948769
159a6546b
hex6950b19

110431001 has 4 divisors (see below), whose sum is σ = 110452404. Its totient is φ = 110409600.

The previous prime is 110430979. The next prime is 110431003. The reversal of 110431001 is 100134011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94109401 + 16321600 = 9701^2 + 4040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-110431001 is a prime.

It is a super-3 number, since 3×1104310013 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110431003) 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, 2321 + ... + 15041.

It is an arithmetic number, because the mean of its divisors is an integer number (27613101).

Almost surely, 2110431001 is an apocalyptic number.

It is an amenable number.

110431001 is a deficient number, since it is larger than the sum of its proper divisors (21403).

110431001 is an equidigital number, since it uses as much as digits as its factorization.

110431001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21402.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 110431001 is about 10508.6155605769. The cubic root of 110431001 is about 479.7669600835.

Adding to 110431001 its reverse (100134011), we get a palindrome (210565012).

The spelling of 110431001 in words is "one hundred ten million, four hundred thirty-one thousand, one".

Divisors: 1 8681 12721 110431001