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4752081 = 33732411
BaseRepresentation
bin10010001000001011010001
322221102122000
4102020023101
52204031311
6245504213
755251315
oct22101321
98842560
104752081
112756344
121712069
13ca4ca9
148b9b45
1563d056
hex4882d1

4752081 has 16 divisors (see below), whose sum is σ = 7139520. Its totient is φ = 3123360.

The previous prime is 4752067. The next prime is 4752089. The reversal of 4752081 is 1802574.

It is not a de Polignac number, because 4752081 - 26 = 4752017 is a prime.

It is a super-2 number, since 2×47520812 = 45164547661122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4752089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766 + ... + 3176.

It is an arithmetic number, because the mean of its divisors is an integer number (446220).

Almost surely, 24752081 is an apocalyptic number.

It is an amenable number.

4752081 is a deficient number, since it is larger than the sum of its proper divisors (2387439).

4752081 is a wasteful number, since it uses less digits than its factorization.

4752081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 4752081 is about 2179.9268336346. The cubic root of 4752081 is about 168.1233150746.

It can be divided in two parts, 475 and 2081, that added together give a triangular number (2556 = T71).

The spelling of 4752081 in words is "four million, seven hundred fifty-two thousand, eighty-one".

Divisors: 1 3 9 27 73 219 657 1971 2411 7233 21699 65097 176003 528009 1584027 4752081