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1923081 = 32692383
BaseRepresentation
bin111010101100000001001
310121200222020
413111200021
5443014311
6105115053
722226436
oct7254011
93550866
101923081
1110a3926
12788a89
13524424
14380b8d
1527ec06
hex1d5809

1923081 has 8 divisors (see below), whose sum is σ = 2574720. Its totient is φ = 1276752.

The previous prime is 1923079. The next prime is 1923083. The reversal of 1923081 is 1803291.

It is an interprime number because it is at equal distance from previous prime (1923079) and next prime (1923083).

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

It is not a de Polignac number, because 1923081 - 21 = 1923079 is a prime.

It is a super-2 number, since 2×19230812 = 7396481065122, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1923083) 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, 385 + ... + 1998.

It is an arithmetic number, because the mean of its divisors is an integer number (321840).

21923081 is an apocalyptic number.

It is an amenable number.

1923081 is a deficient number, since it is larger than the sum of its proper divisors (651639).

1923081 is a wasteful number, since it uses less digits than its factorization.

1923081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1923081 is about 1386.7519605178. The cubic root of 1923081 is about 124.3557465378.

The spelling of 1923081 in words is "one million, nine hundred twenty-three thousand, eighty-one".

Divisors: 1 3 269 807 2383 7149 641027 1923081