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1226142 = 232174007
BaseRepresentation
bin100101011010110011110
32022021221200
410223112132
5303214032
642140330
713264521
oct4532636
92267850
101226142
11768245
124b16a6
1333c138
1423cbb8
1519347c
hex12b59e

1226142 has 24 divisors (see below), whose sum is σ = 2813616. Its totient is φ = 384576.

The previous prime is 1226117. The next prime is 1226179. The reversal of 1226142 is 2416221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1698 + ... + 2309.

It is an arithmetic number, because the mean of its divisors is an integer number (117234).

21226142 is an apocalyptic number.

1226142 is an abundant number, since it is smaller than the sum of its proper divisors (1587474).

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

1226142 is a wasteful number, since it uses less digits than its factorization.

1226142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032 (or 4029 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1226142 is about 1107.3129638905. The cubic root of 1226142 is about 107.0319874086.

The spelling of 1226142 in words is "one million, two hundred twenty-six thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 4007 8014 12021 24042 36063 68119 72126 136238 204357 408714 613071 1226142