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2420747 = 72127389
BaseRepresentation
bin1001001111000000001011
311112222122022
421033000023
51104430442
6123515055
726401400
oct11170013
94488568
102420747
11140381a
12988a8b
13669ac4
144702a7
1532c3d2
hex24f00b

2420747 has 12 divisors (see below), whose sum is σ = 2845440. Its totient is φ = 2053296.

The previous prime is 2420723. The next prime is 2420767. The reversal of 2420747 is 7470242.

It is not a de Polignac number, because 2420747 - 210 = 2419723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2420707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6029 + ... + 6417.

It is an arithmetic number, because the mean of its divisors is an integer number (237120).

22420747 is an apocalyptic number.

2420747 is a deficient number, since it is larger than the sum of its proper divisors (424693).

2420747 is a wasteful number, since it uses less digits than its factorization.

2420747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 2420747 is about 1555.8749949787. The cubic root of 2420747 is about 134.2712815655.

Adding to 2420747 its reverse (7470242), we get a palindrome (9890989).

The spelling of 2420747 in words is "two million, four hundred twenty thousand, seven hundred forty-seven".

Divisors: 1 7 49 127 389 889 2723 6223 19061 49403 345821 2420747