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226802420 = 22513872317
BaseRepresentation
bin11011000010010…
…11101011110100
3120210202202102122
431201023223310
5431030134140
634301055112
75422534355
oct1541135364
9523682378
10226802420
1110702a019
1263b57498
1337caca20
142219bd2c
1514da0ab5
hexd84baf4

226802420 has 24 divisors (see below), whose sum is σ = 512922984. Its totient is φ = 83742336.

The previous prime is 226802419. The next prime is 226802467. The reversal of 226802420 is 24208622.

It can be written as a sum of positive squares in 4 ways, for example, as 14167696 + 212634724 = 3764^2 + 14582^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 226802420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435899 + ... + 436418.

It is an arithmetic number, because the mean of its divisors is an integer number (21371791).

Almost surely, 2226802420 is an apocalyptic number.

226802420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226802420 is an abundant number, since it is smaller than the sum of its proper divisors (286120564).

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

226802420 is a wasteful number, since it uses less digits than its factorization.

226802420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872339 (or 872337 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 226802420 is about 15059.9608233222. The cubic root of 226802420 is about 609.8399831105.

The spelling of 226802420 in words is "two hundred twenty-six million, eight hundred two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 872317 1744634 3489268 4361585 8723170 11340121 17446340 22680242 45360484 56700605 113401210 226802420