Search a number
-
+
1055105 = 51712413
BaseRepresentation
bin100000001100110000001
31222121022222
410001212001
5232230410
634340425
711653052
oct4014601
91877288
101055105
11660797
1242a715
132ac32c
141d6729
1515c955
hex101981

1055105 has 8 divisors (see below), whose sum is σ = 1340712. Its totient is φ = 794368.

The previous prime is 1055083. The next prime is 1055113. The reversal of 1055105 is 5015501.

It can be written as a sum of positive squares in 4 ways, for example, as 135424 + 919681 = 368^2 + 959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1055105 - 212 = 1051009 is a prime.

It is a super-2 number, since 2×10551052 = 2226493122050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

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, 6122 + ... + 6291.

It is an arithmetic number, because the mean of its divisors is an integer number (167589).

21055105 is an apocalyptic number.

It is an amenable number.

1055105 is a deficient number, since it is larger than the sum of its proper divisors (285607).

1055105 is a wasteful number, since it uses less digits than its factorization.

1055105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12435.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 1055105 is about 1027.1830411373. The cubic root of 1055105 is about 101.8040901909.

The spelling of 1055105 in words is "one million, fifty-five thousand, one hundred five".

Divisors: 1 5 17 85 12413 62065 211021 1055105