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53226404 = 22711612833
BaseRepresentation
bin1100101100001…
…0101110100100
310201011011220022
43023002232210
5102111221104
65140454312
71214263010
oct313025644
9121134808
1053226404
1128054870
12159aa398
13b047b1a
1470d7540
154a15bbe
hex32c2ba4

53226404 has 48 divisors (see below), whose sum is σ = 118075776. Its totient is φ = 20390400.

The previous prime is 53226403. The next prime is 53226409. The reversal of 53226404 is 40462235.

It is not an unprimeable number, because it can be changed into a prime (53226403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17372 + ... + 20204.

It is an arithmetic number, because the mean of its divisors is an integer number (2459912).

Almost surely, 253226404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53226404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59037888).

53226404 is an abundant number, since it is smaller than the sum of its proper divisors (64849372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53226404 is a wasteful number, since it uses less digits than its factorization.

53226404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916 (or 2914 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 53226404 is about 7295.6428092390. The cubic root of 53226404 is about 376.1626823566.

Adding to 53226404 its reverse (40462235), we get a palindrome (93688639).

The spelling of 53226404 in words is "fifty-three million, two hundred twenty-six thousand, four hundred four".

Divisors: 1 2 4 7 11 14 22 28 44 61 77 122 154 244 308 427 671 854 1342 1708 2684 2833 4697 5666 9394 11332 18788 19831 31163 39662 62326 79324 124652 172813 218141 345626 436282 691252 872564 1209691 1900943 2419382 3801886 4838764 7603772 13306601 26613202 53226404