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4087023 = 31362341
BaseRepresentation
bin1111100101110011101111
321200122100020
433211303233
52021241043
6223333223
746511343
oct17456357
97618306
104087023
112341706
121451213
13b01375
14785623
1555ae83
hex3e5cef

4087023 has 4 divisors (see below), whose sum is σ = 5449368. Its totient is φ = 2724680.

The previous prime is 4087019. The next prime is 4087037. The reversal of 4087023 is 3207804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4087023 - 22 = 4087019 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 4086984 and 4087002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4087093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681168 + ... + 681173.

It is an arithmetic number, because the mean of its divisors is an integer number (1362342).

Almost surely, 24087023 is an apocalyptic number.

4087023 is a deficient number, since it is larger than the sum of its proper divisors (1362345).

4087023 is a wasteful number, since it uses less digits than its factorization.

4087023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362344.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 4087023 is about 2021.6386917548. The cubic root of 4087023 is about 159.8830264825.

The spelling of 4087023 in words is "four million, eighty-seven thousand, twenty-three".

Divisors: 1 3 1362341 4087023