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1220094 = 23267783
BaseRepresentation
bin100101001110111111110
32021222122200
410221313332
5303020334
642052330
713241061
oct4516776
92258580
101220094
11763747
124aa0a6
13339465
1423a8d8
15191799
hex129dfe

1220094 has 12 divisors (see below), whose sum is σ = 2643576. Its totient is φ = 406692.

The previous prime is 1220077. The next prime is 1220099. The reversal of 1220094 is 4900221.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67783 = 1220094 / (1 + 2 + 2 + 0 + 0 + 9 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33874 + ... + 33909.

It is an arithmetic number, because the mean of its divisors is an integer number (220298).

21220094 is an apocalyptic number.

1220094 is an abundant number, since it is smaller than the sum of its proper divisors (1423482).

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

1220094 is a wasteful number, since it uses less digits than its factorization.

1220094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67791 (or 67788 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1220094 is about 1104.5786526998. The cubic root of 1220094 is about 106.8557172557.

The spelling of 1220094 in words is "one million, two hundred twenty thousand, ninety-four".

Divisors: 1 2 3 6 9 18 67783 135566 203349 406698 610047 1220094