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8738109 = 328910909
BaseRepresentation
bin100001010101…
…010100111101
3121102221102200
4201111110331
54214104414
6511142113
7134162352
oct41252475
917387380
108738109
114a29086
122b14939
131a6c3a3
141236629
15b79109
hex85553d

8738109 has 12 divisors (see below), whose sum is σ = 12764700. Its totient is φ = 5759424.

The previous prime is 8738101. The next prime is 8738123. The reversal of 8738109 is 9018378.

8738109 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 1863225 + 6874884 = 1365^2 + 2622^2 .

It is not a de Polignac number, because 8738109 - 23 = 8738101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8738101) 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, 4654 + ... + 6255.

It is an arithmetic number, because the mean of its divisors is an integer number (1063725).

Almost surely, 28738109 is an apocalyptic number.

8738109 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

8738109 is a deficient number, since it is larger than the sum of its proper divisors (4026591).

8738109 is a wasteful number, since it uses less digits than its factorization.

8738109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11004 (or 11001 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 8738109 is about 2956.0292623721. The cubic root of 8738109 is about 205.9708775245.

The spelling of 8738109 in words is "eight million, seven hundred thirty-eight thousand, one hundred nine".

Divisors: 1 3 9 89 267 801 10909 32727 98181 970901 2912703 8738109