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428148982 = 2297381879
BaseRepresentation
bin11001100001010…
…000100011110110
31002211122012222201
4121201100203312
51334101231412
6110252415114
713416130522
oct3141204366
91084565881
10428148982
111aa751738
12bb47749a
136a918bc1
1440c10d82
15278c3e57
hex198508f6

428148982 has 8 divisors (see below), whose sum is σ = 664369200. Its totient is φ = 206692584.

The previous prime is 428148949. The next prime is 428148989. The reversal of 428148982 is 289841824.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428148989) 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, 3690882 + ... + 3690997.

It is an arithmetic number, because the mean of its divisors is an integer number (83046150).

Almost surely, 2428148982 is an apocalyptic number.

428148982 is a deficient number, since it is larger than the sum of its proper divisors (236220218).

428148982 is a wasteful number, since it uses less digits than its factorization.

428148982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381910.

The product of its digits is 294912, while the sum is 46.

The square root of 428148982 is about 20691.7612106848. The cubic root of 428148982 is about 753.6996355143.

The spelling of 428148982 in words is "four hundred twenty-eight million, one hundred forty-eight thousand, nine hundred eighty-two".

Divisors: 1 2 29 58 7381879 14763758 214074491 428148982