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226620642 = 23172221771
BaseRepresentation
bin11011000000111…
…11010011100010
3120210102112002010
431200133103202
5431003330032
634253133350
75421146403
oct1540372342
9523375063
10226620642
11106a15496
1263a8a256
1337c48071
14221519aa
1514d66ccc
hexd81f4e2

226620642 has 16 divisors (see below), whose sum is σ = 479902752. Its totient is φ = 71096640.

The previous prime is 226620629. The next prime is 226620643. The reversal of 226620642 is 246026622.

226620642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (226620643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1110784 + ... + 1110987.

It is an arithmetic number, because the mean of its divisors is an integer number (29993922).

Almost surely, 2226620642 is an apocalyptic number.

226620642 is an abundant number, since it is smaller than the sum of its proper divisors (253282110).

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

226620642 is a wasteful number, since it uses less digits than its factorization.

226620642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221793.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 226620642 is about 15053.9244717117. The cubic root of 226620642 is about 609.6770143587.

The spelling of 226620642 in words is "two hundred twenty-six million, six hundred twenty thousand, six hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 2221771 4443542 6665313 13330626 37770107 75540214 113310321 226620642