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2238697 = 22310039
BaseRepresentation
bin1000100010100011101001
311012201220201
420202203221
51033114242
6115552201
725012546
oct10424351
94181821
102238697
111299a6a
128bb661
13604c96
14423bcd
152e34b7
hex2228e9

2238697 has 4 divisors (see below), whose sum is σ = 2248960. Its totient is φ = 2228436.

The previous prime is 2238673. The next prime is 2238703. The reversal of 2238697 is 7968322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7968322 = 23984161.

It is a cyclic number.

It is not a de Polignac number, because 2238697 - 27 = 2238569 is a prime.

It is a d-powerful number, because it can be written as 213 + 217 + 37 + 87 + 62 + 9 + 72 .

It is a Duffinian number.

2238697 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2238647) 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, 4797 + ... + 5242.

It is an arithmetic number, because the mean of its divisors is an integer number (562240).

22238697 is an apocalyptic number.

It is an amenable number.

2238697 is a deficient number, since it is larger than the sum of its proper divisors (10263).

2238697 is a wasteful number, since it uses less digits than its factorization.

2238697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262.

The product of its digits is 36288, while the sum is 37.

The square root of 2238697 is about 1496.2275896400. The cubic root of 2238697 is about 130.8172772522.

The spelling of 2238697 in words is "two million, two hundred thirty-eight thousand, six hundred ninety-seven".

Divisors: 1 223 10039 2238697