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4180023 = 32464447
BaseRepresentation
bin1111111100100000110111
321212100220200
433330200313
52032230043
6225331543
750346441
oct17744067
97770820
104180023
1123a5571
121496bb3
13b347b3
147ab491
155787d3
hex3fc837

4180023 has 6 divisors (see below), whose sum is σ = 6037824. Its totient is φ = 2786676.

The previous prime is 4179979. The next prime is 4180051. The reversal of 4180023 is 3200814.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-4180023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4179978 and 4180005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4180093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 232215 + ... + 232232.

It is an arithmetic number, because the mean of its divisors is an integer number (1006304).

Almost surely, 24180023 is an apocalyptic number.

4180023 is a deficient number, since it is larger than the sum of its proper divisors (1857801).

4180023 is a wasteful number, since it uses less digits than its factorization.

4180023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464453 (or 464450 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4180023 is about 2044.5104548522. The cubic root of 4180023 is about 161.0866526838.

Adding to 4180023 its reverse (3200814), we get a palindrome (7380837).

The spelling of 4180023 in words is "four million, one hundred eighty thousand, twenty-three".

Divisors: 1 3 9 464447 1393341 4180023