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226431352 = 23723591609
BaseRepresentation
bin11010111111100…
…01000101111000
3120210001220102101
431133301011320
5430431300402
634245113144
75416430500
oct1537610570
9523056371
10226431352
111068a6254
12639b87b4
1337bacb64
1422102a00
1514d2ab87
hexd7f1178

226431352 has 48 divisors (see below), whose sum is σ = 495558000. Its totient is φ = 96711552.

The previous prime is 226431349. The next prime is 226431427. The reversal of 226431352 is 253134622.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 226431352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139924 + ... + 141532.

It is an arithmetic number, because the mean of its divisors is an integer number (10324125).

Almost surely, 2226431352 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 226431352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247779000).

226431352 is an abundant number, since it is smaller than the sum of its proper divisors (269126648).

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

226431352 is a wasteful number, since it uses less digits than its factorization.

226431352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988 (or 1977 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 226431352 is about 15047.6360934201. The cubic root of 226431352 is about 609.5072182511.

Adding to 226431352 its reverse (253134622), we get a palindrome (479565974).

The spelling of 226431352 in words is "two hundred twenty-six million, four hundred thirty-one thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 359 392 718 1436 1609 2513 2872 3218 5026 6436 10052 11263 12872 17591 20104 22526 35182 45052 70364 78841 90104 140728 157682 315364 577631 630728 1155262 2310524 4043417 4621048 8086834 16173668 28303919 32347336 56607838 113215676 226431352