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10938919 = 50921491
BaseRepresentation
bin101001101110…
…101000100111
3202120202101011
4221232220213
510300021134
61030243051
7161656615
oct51565047
922522334
1010938919
1161a1632
1237b6487
132360044
14164a6b5
15e61264
hexa6ea27

10938919 has 4 divisors (see below), whose sum is σ = 10960920. Its totient is φ = 10916920.

The previous prime is 10938911. The next prime is 10938929. The reversal of 10938919 is 91983901.

10938919 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91983901 = 109843889.

It is a cyclic number.

It is not a de Polignac number, because 10938919 - 23 = 10938911 is a prime.

It is a super-2 number, since 2×109389192 = 239319897777122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10938911) 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, 10237 + ... + 11254.

It is an arithmetic number, because the mean of its divisors is an integer number (2740230).

Almost surely, 210938919 is an apocalyptic number.

10938919 is a deficient number, since it is larger than the sum of its proper divisors (22001).

10938919 is an equidigital number, since it uses as much as digits as its factorization.

10938919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22000.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 10938919 is about 3307.4036645079. The cubic root of 10938919 is about 221.9855995312.

The spelling of 10938919 in words is "ten million, nine hundred thirty-eight thousand, nine hundred nineteen".

Divisors: 1 509 21491 10938919