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1226888 = 231347251
BaseRepresentation
bin100101011100010001000
32022022222022
410223202020
5303230023
642144012
713266635
oct4534210
92268868
101226888
11768863
124b2008
1333c590
1423d18c
151937c8
hex12b888

1226888 has 32 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 552000.

The previous prime is 1226867. The next prime is 1226891. The reversal of 1226888 is 8886221.

It is a plaindrome in base 10.

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, 4763 + ... + 5013.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

21226888 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 1226888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270080).

1226888 is an abundant number, since it is smaller than the sum of its proper divisors (1313272).

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

1226888 is a wasteful number, since it uses less digits than its factorization.

1226888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 313 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 1226888 is about 1107.6497641403. The cubic root of 1226888 is about 107.0536895374.

The spelling of 1226888 in words is "one million, two hundred twenty-six thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 13 26 47 52 94 104 188 251 376 502 611 1004 1222 2008 2444 3263 4888 6526 11797 13052 23594 26104 47188 94376 153361 306722 613444 1226888