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109950909 = 336650303
BaseRepresentation
bin1101000110110…
…11011110111101
321122220002021220
412203123132331
5211121412114
614524343553
72503365405
oct643333675
9248802256
10109950909
1157078822
12309a4bb9
1319a18c13
1410861805
1599bd0a9
hex68db7bd

109950909 has 4 divisors (see below), whose sum is σ = 146601216. Its totient is φ = 73300604.

The previous prime is 109950899. The next prime is 109950913. The reversal of 109950909 is 909059901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 909059901 = 3303019967.

It is a cyclic number.

It is not a de Polignac number, because 109950909 - 28 = 109950653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109950989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18325149 + ... + 18325154.

It is an arithmetic number, because the mean of its divisors is an integer number (36650304).

Almost surely, 2109950909 is an apocalyptic number.

It is an amenable number.

109950909 is a deficient number, since it is larger than the sum of its proper divisors (36650307).

109950909 is an equidigital number, since it uses as much as digits as its factorization.

109950909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36650306.

The product of its (nonzero) digits is 32805, while the sum is 42.

The square root of 109950909 is about 10485.7478989341. The cubic root of 109950909 is about 479.0706976482.

The spelling of 109950909 in words is "one hundred nine million, nine hundred fifty thousand, nine hundred nine".

Divisors: 1 3 36650303 109950909