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2420045 = 5521929
BaseRepresentation
bin1001001110110101001101
311112221200022
421032311031
51104420140
6123511525
726366345
oct11166515
94487608
102420045
111403241
129885a5
136696a4
1446dd25
1532c0b5
hex24ed4d

2420045 has 8 divisors (see below), whose sum is σ = 2912760. Its totient is φ = 1930240.

The previous prime is 2420017. The next prime is 2420051. The reversal of 2420045 is 5400242.

It can be written as a sum of positive squares in 4 ways, for example, as 29929 + 2390116 = 173^2 + 1546^2 .

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

It is not a de Polignac number, because 2420045 - 26 = 2419981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2141 + ... + 3069.

It is an arithmetic number, because the mean of its divisors is an integer number (364095).

22420045 is an apocalyptic number.

It is an amenable number.

2420045 is a deficient number, since it is larger than the sum of its proper divisors (492715).

2420045 is an equidigital number, since it uses as much as digits as its factorization.

2420045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2420045 is about 1555.6493820910. The cubic root of 2420045 is about 134.2583010610.

Adding to 2420045 its reverse (5400242), we get a palindrome (7820287).

The spelling of 2420045 in words is "two million, four hundred twenty thousand, forty-five".

Divisors: 1 5 521 929 2605 4645 484009 2420045