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226668940 = 22511333447
BaseRepresentation
bin11011000001010…
…11000110001100
3120210111222022221
431200223012030
5431011401230
634254145124
75421440251
oct1540530614
9523458287
10226668940
11106a48803
1263ab21a4
1337c64044
1422165428
1514d7627a
hexd82b18c

226668940 has 12 divisors (see below), whose sum is σ = 476004816. Its totient is φ = 90667568.

The previous prime is 226668899. The next prime is 226668971. The reversal of 226668940 is 49866622.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5666704 + ... + 5666743.

It is an arithmetic number, because the mean of its divisors is an integer number (39667068).

Almost surely, 2226668940 is an apocalyptic number.

226668940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226668940 is an abundant number, since it is smaller than the sum of its proper divisors (249335876).

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

226668940 is a wasteful number, since it uses less digits than its factorization.

226668940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11333456 (or 11333454 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 226668940 is about 15055.5285526613. The cubic root of 226668940 is about 609.7203232832.

The spelling of 226668940 in words is "two hundred twenty-six million, six hundred sixty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 11333447 22666894 45333788 56667235 113334470 226668940