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1049161 = 1955219
BaseRepresentation
bin100000000001001001001
31222022011211
410000021021
5232033121
634253121
711626531
oct4001111
91868154
101049161
11657283
124271a1
132a9709
141d44c1
1515ace1
hex100249

1049161 has 4 divisors (see below), whose sum is σ = 1104400. Its totient is φ = 993924.

The previous prime is 1049143. The next prime is 1049171. The reversal of 1049161 is 1619401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1049161 - 25 = 1049129 is a prime.

It is a super-2 number, since 2×10491612 = 2201477607842, which contains 22 as substring.

It is a Duffinian number.

1049161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1049101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27591 + ... + 27628.

It is an arithmetic number, because the mean of its divisors is an integer number (276100).

21049161 is an apocalyptic number.

It is an amenable number.

1049161 is a deficient number, since it is larger than the sum of its proper divisors (55239).

1049161 is an equidigital number, since it uses as much as digits as its factorization.

1049161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55238.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1049161 is about 1024.2856047021. The cubic root of 1049161 is about 101.6125568315.

The spelling of 1049161 in words is "one million, forty-nine thousand, one hundred sixty-one".

Divisors: 1 19 55219 1049161