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210131044 = 22244121521
BaseRepresentation
bin11001000011001…
…01100001100100
3112122101202121021
430201211201210
5412243143134
632503500524
75131040644
oct1441454144
9478352537
10210131044
11a8682622
125a457744
13346c36c6
141dc9c524
15136ab0b4
hexc865864

210131044 has 12 divisors (see below), whose sum is σ = 367897068. Its totient is φ = 105017600.

The previous prime is 210131041. The next prime is 210131057. The reversal of 210131044 is 440131012.

It can be written as a sum of positive squares in 2 ways, for example, as 59136100 + 150994944 = 7690^2 + 12288^2 .

It is not an unprimeable number, because it can be changed into a prime (210131041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997 + ... + 20524.

It is an arithmetic number, because the mean of its divisors is an integer number (30658089).

Almost surely, 2210131044 is an apocalyptic number.

It is an amenable number.

210131044 is a deficient number, since it is larger than the sum of its proper divisors (157766024).

210131044 is a wasteful number, since it uses less digits than its factorization.

210131044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23966 (or 23964 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 210131044 is about 14495.8974886000. The cubic root of 210131044 is about 594.5158069184.

Adding to 210131044 its reverse (440131012), we get a palindrome (650262056).

The spelling of 210131044 in words is "two hundred ten million, one hundred thirty-one thousand, forty-four".

Divisors: 1 2 4 2441 4882 9764 21521 43042 86084 52532761 105065522 210131044