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10945215 = 325243227
BaseRepresentation
bin101001110000…
…001010111111
3202121002000100
4221300022333
510300221330
61030332143
7162014151
oct51601277
922532010
1010945215
1161a6336
1237ba053
132362b78
14164cad1
15e63060
hexa702bf

10945215 has 12 divisors (see below), whose sum is σ = 18971784. Its totient is φ = 5837424.

The previous prime is 10945211. The next prime is 10945243. The reversal of 10945215 is 51254901.

It is not a de Polignac number, because 10945215 - 22 = 10945211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10945211) 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 11 ways as a sum of consecutive naturals, for example, 121569 + ... + 121658.

It is an arithmetic number, because the mean of its divisors is an integer number (1580982).

Almost surely, 210945215 is an apocalyptic number.

10945215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10945215 is a deficient number, since it is larger than the sum of its proper divisors (8026569).

10945215 is a wasteful number, since it uses less digits than its factorization.

10945215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243238 (or 243235 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 10945215 is about 3308.3553315809. The cubic root of 10945215 is about 222.0281800118.

The spelling of 10945215 in words is "ten million, nine hundred forty-five thousand, two hundred fifteen".

Divisors: 1 3 5 9 15 45 243227 729681 1216135 2189043 3648405 10945215