Search a number
-
+
229457641 = 726776917
BaseRepresentation
bin11011010110100…
…11111011101001
3120222202122201011
431223103323221
5432220121031
634434023521
75454233500
oct1553237351
9528678634
10229457641
11108582a16
1264a17ba1
13386cc46a
142268d837
15152276b1
hexdad3ee9

229457641 has 12 divisors (see below), whose sum is σ = 267353028. Its totient is φ = 196359072.

The previous prime is 229457621. The next prime is 229457681. The reversal of 229457641 is 146754922.

It can be written as a sum of positive squares in 2 ways, for example, as 201526416 + 27931225 = 14196^2 + 5285^2 .

It is not a de Polignac number, because 229457641 - 215 = 229424873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 229457594 and 229457603.

It is not an unprimeable number, because it can be changed into a prime (229457611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29715 + ... + 36631.

It is an arithmetic number, because the mean of its divisors is an integer number (22279419).

Almost surely, 2229457641 is an apocalyptic number.

It is an amenable number.

229457641 is a deficient number, since it is larger than the sum of its proper divisors (37895387).

229457641 is an equidigital number, since it uses as much as digits as its factorization.

229457641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608 (or 7601 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 229457641 is about 15147.8592877013. The cubic root of 229457641 is about 612.2105952513.

The spelling of 229457641 in words is "two hundred twenty-nine million, four hundred fifty-seven thousand, six hundred forty-one".

Divisors: 1 7 49 677 4739 6917 33173 48419 338933 4682809 32779663 229457641