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2420029 = 9772477
BaseRepresentation
bin1001001110110100111101
311112221122201
421032310331
51104420104
6123511501
726366323
oct11166475
94487581
102420029
111403227
12988591
13669691
1446dd13
1532c0a4
hex24ed3d

2420029 has 4 divisors (see below), whose sum is σ = 2423484. Its totient is φ = 2416576.

The previous prime is 2420017. The next prime is 2420051. The reversal of 2420029 is 9200242.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 597529 = 1350^2 + 773^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420029 - 211 = 2417981 is a prime.

It is a Duffinian number.

2420029 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2419988 and 2420015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262 + ... + 2215.

It is an arithmetic number, because the mean of its divisors is an integer number (605871).

22420029 is an apocalyptic number.

It is an amenable number.

2420029 is a deficient number, since it is larger than the sum of its proper divisors (3455).

2420029 is an equidigital number, since it uses as much as digits as its factorization.

2420029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2420029 is about 1555.6442395355. The cubic root of 2420029 is about 134.2580051798.

The spelling of 2420029 in words is "two million, four hundred twenty thousand, twenty-nine".

Divisors: 1 977 2477 2420029