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2238741 = 32248749
BaseRepresentation
bin1000100010100100010101
311012201222100
420202210111
51033114431
6115552313
725012641
oct10424425
94181870
102238741
111299aaa
128bb699
13604ccb
14423c21
152e34e6
hex222915

2238741 has 6 divisors (see below), whose sum is σ = 3233750. Its totient is φ = 1492488.

The previous prime is 2238721. The next prime is 2238749. The reversal of 2238741 is 1478322.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 77841 = 1470^2 + 279^2 .

It is not a de Polignac number, because 2238741 - 211 = 2236693 is a prime.

It is a super-2 number, since 2×22387412 = 10023922530162, which contains 22 as substring.

It is a d-powerful number, because it can be written as 25 + 27 + 39 + 87 + 76 + 46 + 1 .

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124366 + ... + 124383.

22238741 is an apocalyptic number.

It is an amenable number.

2238741 is a deficient number, since it is larger than the sum of its proper divisors (995009).

2238741 is a wasteful number, since it uses less digits than its factorization.

2238741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248755 (or 248752 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2238741 is about 1496.2422932132. The cubic root of 2238741 is about 130.8181342868.

The spelling of 2238741 in words is "two million, two hundred thirty-eight thousand, seven hundred forty-one".

Divisors: 1 3 9 248749 746247 2238741