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2420384771 = 7897138543
BaseRepresentation
bin1001000001000100…
…0010010000000011
320020200101021201102
42100101002100003
514424104303041
61040101125015
7113656634240
oct22021022003
96220337642
102420384771
1110322759a2
125766b976b
132c75a524c
1418d6485c7
15e275109b
hex90442403

2420384771 has 8 divisors (see below), whose sum is σ = 2766534144. Its totient is φ = 2074330440.

The previous prime is 2420384683. The next prime is 2420384777. The reversal of 2420384771 is 1774830242.

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

It is a de Polignac number, because none of the positive numbers 2k-2420384771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2420384777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43526 + ... + 82068.

It is an arithmetic number, because the mean of its divisors is an integer number (345816768).

Almost surely, 22420384771 is an apocalyptic number.

2420384771 is a deficient number, since it is larger than the sum of its proper divisors (346149373).

2420384771 is an equidigital number, since it uses as much as digits as its factorization.

2420384771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47521.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 2420384771 is about 49197.4061409745. The cubic root of 2420384771 is about 1342.6458399407.

The spelling of 2420384771 in words is "two billion, four hundred twenty million, three hundred eighty-four thousand, seven hundred seventy-one".

Divisors: 1 7 8971 38543 62797 269801 345769253 2420384771