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420834373 = 4157717789
BaseRepresentation
bin11001000101010…
…110110001000101
31002022212121020021
4121011112301011
51330213144443
6105431535141
713300014241
oct3105266105
91068777207
10420834373
111a6606103
12b8b2a4b1
136925772b
143dc69421
1526e2b9ed
hex19156c45

420834373 has 8 divisors (see below), whose sum is σ = 431870040. Its totient is φ = 409835520.

The previous prime is 420834367. The next prime is 420834419. The reversal of 420834373 is 373438024.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 207878724 + 212955649 = 14418^2 + 14593^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-420834373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420834353) 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 7 ways as a sum of consecutive naturals, for example, 14763 + ... + 32551.

It is an arithmetic number, because the mean of its divisors is an integer number (53983755).

Almost surely, 2420834373 is an apocalyptic number.

It is an amenable number.

420834373 is a deficient number, since it is larger than the sum of its proper divisors (11035667).

420834373 is a wasteful number, since it uses less digits than its factorization.

420834373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18407.

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 420834373 is about 20514.2480486125. The cubic root of 420834373 is about 749.3828244132.

The spelling of 420834373 in words is "four hundred twenty million, eight hundred thirty-four thousand, three hundred seventy-three".

Divisors: 1 41 577 17789 23657 729349 10264253 420834373