Search a number
-
+
554226420 = 2235116171361
BaseRepresentation
bin100001000010001…
…101001011110100
31102121212121201110
4201002031023310
52113340221140
6130554555020
716506563316
oct4102151364
91377777643
10554226420
11264934570
12135738a70
138aa90137
145386d7b6
15339ca380
hex2108d2f4

554226420 has 96 divisors (see below), whose sum is σ = 1696899456. Its totient is φ = 134041600.

The previous prime is 554226403. The next prime is 554226427. The reversal of 554226420 is 24622455.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554226427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 406540 + ... + 407900.

It is an arithmetic number, because the mean of its divisors is an integer number (17676036).

Almost surely, 2554226420 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 554226420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848449728).

554226420 is an abundant number, since it is smaller than the sum of its proper divisors (1142673036).

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

554226420 is a wasteful number, since it uses less digits than its factorization.

554226420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 554226420 is about 23542.0139325420. The cubic root of 554226420 is about 821.4145818988.

Adding to 554226420 its reverse (24622455), we get a palindrome (578848875).

The spelling of 554226420 in words is "five hundred fifty-four million, two hundred twenty-six thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 617 660 1234 1361 1851 2468 2722 3085 3702 4083 5444 6170 6787 6805 7404 8166 9255 12340 13574 13610 14971 16332 18510 20361 20415 27148 27220 29942 33935 37020 40722 40830 44913 59884 67870 74855 81444 81660 89826 101805 135740 149710 179652 203610 224565 299420 407220 449130 839737 898260 1679474 2519211 3358948 4198685 5038422 8397370 9237107 10076844 12596055 16794740 18474214 25192110 27711321 36948428 46185535 50384220 55422642 92371070 110845284 138556605 184742140 277113210 554226420