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103250209 = 493120939
BaseRepresentation
bin1100010011101…
…11100100100001
321012021122122211
412021313210201
5202413001314
614125002121
72362420006
oct611674441
9235248584
10103250209
1153311457
122a6b3341
1318510cca
14d9d98ad
1590e79c4
hex6277921

103250209 has 4 divisors (see below), whose sum is σ = 103276080. Its totient is φ = 103224340.

The previous prime is 103250167. The next prime is 103250221. The reversal of 103250209 is 902052301.

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.

It is a cyclic number.

It is not a de Polignac number, because 103250209 - 29 = 103249697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103250209.

It is not an unprimeable number, because it can be changed into a prime (103250309) 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, 5539 + ... + 15400.

It is an arithmetic number, because the mean of its divisors is an integer number (25819020).

Almost surely, 2103250209 is an apocalyptic number.

It is an amenable number.

103250209 is a deficient number, since it is larger than the sum of its proper divisors (25871).

103250209 is an equidigital number, since it uses as much as digits as its factorization.

103250209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25870.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 103250209 is about 10161.2110006633. The cubic root of 103250209 is about 469.1340763510.

The spelling of 103250209 in words is "one hundred three million, two hundred fifty thousand, two hundred nine".

Divisors: 1 4931 20939 103250209