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226654988 = 22721156403
BaseRepresentation
bin11011000001001…
…11101100001100
3120210111021012012
431200213230030
5431010424423
634254000352
75421351500
oct1540475414
9523437165
10226654988
11106a3927a
1263aa60b8
1337c5a8a1
1422160300
1514d72078
hexd827b0c

226654988 has 18 divisors (see below), whose sum is σ = 461405196. Its totient is φ = 97137768.

The previous prime is 226654979. The next prime is 226654993. The reversal of 226654988 is 889456622.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578006 + ... + 578397.

It is an arithmetic number, because the mean of its divisors is an integer number (25633622).

Almost surely, 2226654988 is an apocalyptic number.

226654988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

226654988 is an abundant number, since it is smaller than the sum of its proper divisors (234750208).

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

226654988 is a wasteful number, since it uses less digits than its factorization.

226654988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156421 (or 1156412 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The square root of 226654988 is about 15055.0651941465. The cubic root of 226654988 is about 609.7078131255.

The spelling of 226654988 in words is "two hundred twenty-six million, six hundred fifty-four thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 1156403 2312806 4625612 8094821 16189642 32379284 56663747 113327494 226654988