Search a number
-
+
4756861 = 41181641
BaseRepresentation
bin10010001001010101111101
322221200012001
4102021111331
52204204421
6245542301
755301254
oct22112575
98850161
104756861
11275999a
121714991
13ca7215
148bb79b
1563e691
hex48957d

4756861 has 8 divisors (see below), whose sum is σ = 4907448. Its totient is φ = 4608000.

The previous prime is 4756853. The next prime is 4756867. The reversal of 4756861 is 1686574.

It can be written as a sum of positive squares in 4 ways, for example, as 100 + 4756761 = 10^2 + 2181^2 .

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

It is a 6-Lehmer number, since φ(4756861) divides (4756861-1)6.

It is a cyclic number.

It is not a de Polignac number, because 4756861 - 23 = 4756853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4756861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4756867) 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, 7101 + ... + 7741.

It is an arithmetic number, because the mean of its divisors is an integer number (613431).

Almost surely, 24756861 is an apocalyptic number.

4756861 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4756861 is a deficient number, since it is larger than the sum of its proper divisors (150587).

4756861 is a wasteful number, since it uses less digits than its factorization.

4756861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its digits is 40320, while the sum is 37.

The square root of 4756861 is about 2181.0229251432. The cubic root of 4756861 is about 168.1796665373.

The spelling of 4756861 in words is "four million, seven hundred fifty-six thousand, eight hundred sixty-one".

Divisors: 1 41 181 641 7421 26281 116021 4756861