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901057 = 4121977
BaseRepresentation
bin11011011111111000001
31200210000111
43123333001
5212313212
631151321
710441663
oct3337701
91623014
10901057
11565a83
12375541
13257191
14196533
1512bea7
hexdbfc1

901057 has 4 divisors (see below), whose sum is σ = 923076. Its totient is φ = 879040.

The previous prime is 901013. The next prime is 901063. The reversal of 901057 is 750109.

901057 is nontrivially palindromic in base 5.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750109 = 5314153.

It can be written as a sum of positive squares in 2 ways, for example, as 197136 + 703921 = 444^2 + 839^2 .

It is not a de Polignac number, because 901057 - 27 = 900929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (901007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10948 + ... + 11029.

It is an arithmetic number, because the mean of its divisors is an integer number (230769).

2901057 is an apocalyptic number.

It is an amenable number.

901057 is a deficient number, since it is larger than the sum of its proper divisors (22019).

901057 is a wasteful number, since it uses less digits than its factorization.

901057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22018.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 901057 is about 949.2402224938. The cubic root of 901057 is about 96.5867207948.

The spelling of 901057 in words is "nine hundred one thousand, fifty-seven".

Divisors: 1 41 21977 901057