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2054923 = 13158071
BaseRepresentation
bin111110101101100001011
310212101211021
413311230023
51011224143
6112013311
723316013
oct7655413
93771737
102054923
111183992
12831237
1356c440
143b6c43
152a8ced
hex1f5b0b

2054923 has 4 divisors (see below), whose sum is σ = 2213008. Its totient is φ = 1896840.

The previous prime is 2054917. The next prime is 2054933. The reversal of 2054923 is 3294502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3294502 = 21647251.

It is a cyclic number.

It is not a de Polignac number, because 2054923 - 213 = 2046731 is a prime.

It is the 1434-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054903) by changing a digit.

It is a nontrivial repunit in base 1433.

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, 79023 + ... + 79048.

It is an arithmetic number, because the mean of its divisors is an integer number (553252).

22054923 is an apocalyptic number.

2054923 is a deficient number, since it is larger than the sum of its proper divisors (158085).

2054923 is a wasteful number, since it uses less digits than its factorization.

2054923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158084.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2054923 is about 1433.5002615975. The cubic root of 2054923 is about 127.1350166801.

The spelling of 2054923 in words is "two million, fifty-four thousand, nine hundred twenty-three".

Divisors: 1 13 158071 2054923