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302420041220 = 225111374636551
BaseRepresentation
bin1000110011010011010…
…00111001111000000100
31001220121011122212012102
410121221220321320010
514423324012304340
6350532503011232
730564151636163
oct4315150717004
91056534585172
10302420041220
1110728a258070
124a73ba39b18
132269731366b
14108cc6db3da
157ceed93215
hex4669a39e04

302420041220 has 24 divisors (see below), whose sum is σ = 692816822208. Its totient is φ = 109970924000.

The previous prime is 302420041181. The next prime is 302420041229. The reversal of 302420041220 is 22140024203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 302420041192 and 302420041201.

It is not an unprimeable number, because it can be changed into a prime (302420041229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687318056 + ... + 687318495.

It is an arithmetic number, because the mean of its divisors is an integer number (28867367592).

Almost surely, 2302420041220 is an apocalyptic number.

It is an amenable number.

302420041220 is an abundant number, since it is smaller than the sum of its proper divisors (390396780988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

302420041220 is a wasteful number, since it uses less digits than its factorization.

302420041220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374636571 (or 1374636569 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 302420041220 its reverse (22140024203), we get a palindrome (324560065423).

The spelling of 302420041220 in words is "three hundred two billion, four hundred twenty million, forty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1374636551 2749273102 5498546204 6873182755 13746365510 15121002061 27492731020 30242004122 60484008244 75605010305 151210020610 302420041220