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10250505 = 325227789
BaseRepresentation
bin100111000110…
…100100001001
3201021210001100
4213012210021
510111004010
61003412013
7153061566
oct47064411
921253040
1010250505
1158713a1
123524009
13217b8b5
14150b86d
15d772c0
hex9c6909

10250505 has 12 divisors (see below), whose sum is σ = 17767620. Its totient is φ = 5466912.

The previous prime is 10250503. The next prime is 10250521. The reversal of 10250505 is 50505201.

It can be written as a sum of positive squares in 2 ways, for example, as 6610041 + 3640464 = 2571^2 + 1908^2 .

It is not a de Polignac number, because 10250505 - 21 = 10250503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10250503) 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, 113850 + ... + 113939.

It is an arithmetic number, because the mean of its divisors is an integer number (1480635).

Almost surely, 210250505 is an apocalyptic number.

10250505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10250505 is a deficient number, since it is larger than the sum of its proper divisors (7517115).

10250505 is a wasteful number, since it uses less digits than its factorization.

10250505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227800 (or 227797 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 10250505 is about 3201.6409854948. The cubic root of 10250505 is about 217.2276416496.

Adding to 10250505 its reverse (50505201), we get a palindrome (60755706).

The spelling of 10250505 in words is "ten million, two hundred fifty thousand, five hundred five".

Divisors: 1 3 5 9 15 45 227789 683367 1138945 2050101 3416835 10250505