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10388945 = 57296827
BaseRepresentation
bin100111101000…
…010111010001
3201112210221202
4213220113101
510124421240
61010400545
7154206320
oct47502721
921483852
1010388945
115956406
123590155
1321c9908
1415460b7
15da3315
hex9e85d1

10388945 has 8 divisors (see below), whose sum is σ = 14247744. Its totient is φ = 7123824.

The previous prime is 10388941. The next prime is 10388947. The reversal of 10388945 is 54988301.

10388945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10388945 - 22 = 10388941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10388899 and 10388908.

It is not an unprimeable number, because it can be changed into a prime (10388941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148379 + ... + 148448.

It is an arithmetic number, because the mean of its divisors is an integer number (1780968).

Almost surely, 210388945 is an apocalyptic number.

It is an amenable number.

10388945 is a deficient number, since it is larger than the sum of its proper divisors (3858799).

10388945 is an equidigital number, since it uses as much as digits as its factorization.

10388945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296839.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 10388945 is about 3223.1886386000. The cubic root of 10388945 is about 218.2012072153.

The spelling of 10388945 in words is "ten million, three hundred eighty-eight thousand, nine hundred forty-five".

Divisors: 1 5 7 35 296827 1484135 2077789 10388945