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10980945 = 325244021
BaseRepresentation
bin101001111000…
…111001010001
3202122220000200
4221320321101
510302342240
61031205413
7162223263
oct51707121
922586020
1010980945
116220168
123816869
132376201
14165bb33
15e6d930
hexa78e51

10980945 has 12 divisors (see below), whose sum is σ = 19033716. Its totient is φ = 5856480.

The previous prime is 10980941. The next prime is 10980967. The reversal of 10980945 is 54908901.

10980945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7420176 + 3560769 = 2724^2 + 1887^2 .

It is not a de Polignac number, because 10980945 - 22 = 10980941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10980941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121966 + ... + 122055.

It is an arithmetic number, because the mean of its divisors is an integer number (1586143).

Almost surely, 210980945 is an apocalyptic number.

10980945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10980945 is a deficient number, since it is larger than the sum of its proper divisors (8052771).

10980945 is a wasteful number, since it uses less digits than its factorization.

10980945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244032 (or 244029 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 10980945 is about 3313.7508958882. The cubic root of 10980945 is about 222.2695168319.

The spelling of 10980945 in words is "ten million, nine hundred eighty thousand, nine hundred forty-five".

Divisors: 1 3 5 9 15 45 244021 732063 1220105 2196189 3660315 10980945