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541023231 = 3725763011
BaseRepresentation
bin100000001111110…
…101101111111111
31101201000211100110
4200033311233333
52102000220411
6125404001103
716256423130
oct4017655777
91351024313
10541023231
11258436841
12131230193
13881195b8
1451bd3c87
153276d2a6
hex203f5bff

541023231 has 8 divisors (see below), whose sum is σ = 824416384. Its totient is φ = 309156120.

The previous prime is 541023229. The next prime is 541023239. The reversal of 541023231 is 132320145.

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

It is not a de Polignac number, because 541023231 - 21 = 541023229 is a prime.

It is a super-2 number, since 2×5410232312 = 585412272963358722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 25763011 = 541023231 / (5 + 4 + 1 + 0 + 2 + 3 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 541023198 and 541023207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541023239) 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, 12881485 + ... + 12881526.

It is an arithmetic number, because the mean of its divisors is an integer number (103052048).

Almost surely, 2541023231 is an apocalyptic number.

541023231 is a deficient number, since it is larger than the sum of its proper divisors (283393153).

541023231 is a wasteful number, since it uses less digits than its factorization.

541023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25763021.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 541023231 is about 23259.9060832154. The cubic root of 541023231 is about 814.8393078999.

Adding to 541023231 its reverse (132320145), we get a palindrome (673343376).

The spelling of 541023231 in words is "five hundred forty-one million, twenty-three thousand, two hundred thirty-one".

Divisors: 1 3 7 21 25763011 77289033 180341077 541023231