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1050149 = 1922909
BaseRepresentation
bin100000000011000100101
31222100112102
410000120211
5232101044
634301445
711632442
oct4003045
91870472
101050149
11657aa1
12427885
132a9cb9
141d49c9
1515b24e
hex100625

1050149 has 6 divisors (see below), whose sum is σ = 1108710. Its totient is φ = 994536.

The previous prime is 1050139. The next prime is 1050151. The reversal of 1050149 is 9410501.

It can be written as a sum of positive squares in only one way, i.e., 1014049 + 36100 = 1007^2 + 190^2 .

It is not a de Polignac number, because 1050149 - 212 = 1046053 is a prime.

It is a super-2 number, since 2×10501492 = 2205625844402, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1050149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050139) 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, 1094 + ... + 1815.

It is an arithmetic number, because the mean of its divisors is an integer number (184785).

21050149 is an apocalyptic number.

1050149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1050149 is a deficient number, since it is larger than the sum of its proper divisors (58561).

1050149 is an equidigital number, since it uses as much as digits as its factorization.

1050149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947 (or 2928 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1050149 is about 1024.7677785723. The cubic root of 1050149 is about 101.6444431702.

The spelling of 1050149 in words is "one million, fifty thousand, one hundred forty-nine".

Divisors: 1 19 361 2909 55271 1050149