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4740121 = 8535557
BaseRepresentation
bin10010000101010000011001
322220211020001
4102011100121
52203140441
6245333001
755201411
oct22052031
98824201
104740121
112748361
121707161
13c9c709
148b5641
15639731
hex485419

4740121 has 4 divisors (see below), whose sum is σ = 4746532. Its totient is φ = 4733712.

The previous prime is 4740103. The next prime is 4740143. The reversal of 4740121 is 1210474.

4740121 = 15392 + 15402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1210474 = 2605237.

It can be written as a sum of positive squares in 2 ways, for example, as 2371600 + 2368521 = 1540^2 + 1539^2 .

It is a cyclic number.

It is not a de Polignac number, because 4740121 - 25 = 4740089 is a prime.

It is a Duffinian number.

4740121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4740521) 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, 1926 + ... + 3631.

It is an arithmetic number, because the mean of its divisors is an integer number (1186633).

Almost surely, 24740121 is an apocalyptic number.

4740121 is the 1540-th centered square number.

It is an amenable number.

4740121 is a deficient number, since it is larger than the sum of its proper divisors (6411).

4740121 is an equidigital number, since it uses as much as digits as its factorization.

4740121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6410.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 4740121 is about 2177.1818941007. The cubic root of 4740121 is about 167.9821527715.

Adding to 4740121 its reverse (1210474), we get a palindrome (5950595).

The spelling of 4740121 in words is "four million, seven hundred forty thousand, one hundred twenty-one".

Divisors: 1 853 5557 4740121