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11420923 = 17739203
BaseRepresentation
bin101011100100…
…010011111011
3210111020120011
4223210103323
510410432143
61044442351
7166035103
oct53442373
923436504
1011420923
1164a0788
1239a93b7
13249b557
141734203
151008e9d
hexae44fb

11420923 has 8 divisors (see below), whose sum is σ = 12259728. Its totient is φ = 10600704.

The previous prime is 11420909. The next prime is 11420939. The reversal of 11420923 is 32902411.

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 11420923 - 25 = 11420891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11420894 and 11420903.

It is not an unprimeable number, because it can be changed into a prime (11420623) 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, 3361 + ... + 5842.

It is an arithmetic number, because the mean of its divisors is an integer number (1532466).

It is a vampire number, since it can be written as 12419203 (with its own digits).

Almost surely, 211420923 is an apocalyptic number.

11420923 is a deficient number, since it is larger than the sum of its proper divisors (838805).

11420923 is an equidigital number, since it uses as much as digits as its factorization.

11420923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9293.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 11420923 is about 3379.4856117463. The cubic root of 11420923 is about 225.1993163874.

The spelling of 11420923 in words is "eleven million, four hundred twenty thousand, nine hundred twenty-three".

Divisors: 1 17 73 1241 9203 156451 671819 11420923