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114221021 = 409279269
BaseRepresentation
bin1101100111011…
…01111111011101
321221221000210012
412303231333131
5213220033041
615200053005
72554601615
oct663557735
9257830705
10114221021
1159524a42
1232304165
131a882705
1411253a45
15a0633eb
hex6cedfdd

114221021 has 4 divisors (see below), whose sum is σ = 114500700. Its totient is φ = 113941344.

The previous prime is 114221017. The next prime is 114221047. The reversal of 114221021 is 120122411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120122411 = 1031166237.

It can be written as a sum of positive squares in 2 ways, for example, as 43744996 + 70476025 = 6614^2 + 8395^2 .

It is a cyclic number.

It is not a de Polignac number, because 114221021 - 22 = 114221017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 114220987 and 114221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (114221071) 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, 139226 + ... + 140043.

It is an arithmetic number, because the mean of its divisors is an integer number (28625175).

Almost surely, 2114221021 is an apocalyptic number.

It is an amenable number.

114221021 is a deficient number, since it is larger than the sum of its proper divisors (279679).

114221021 is an equidigital number, since it uses as much as digits as its factorization.

114221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279678.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 114221021 is about 10687.4234968022. The cubic root of 114221021 is about 485.1939154427.

Adding to 114221021 its reverse (120122411), we get a palindrome (234343432).

The spelling of 114221021 in words is "one hundred fourteen million, two hundred twenty-one thousand, twenty-one".

Divisors: 1 409 279269 114221021