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428718960 = 243354147103
BaseRepresentation
bin11001100011011…
…011101101110000
31002212201011212000
4121203123231300
51334223001320
6110312534000
713424023335
oct3143335560
91085634760
10428718960
1120000099a
12bb6b1300
136aa88477
1440d1c98c
1527987c90
hex198dbb70

428718960 has 320 divisors, whose sum is σ = 1559900160. Its totient is φ = 108103680.

The previous prime is 428718959. The next prime is 428718967. The reversal of 428718960 is 69817824.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428718967) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4162269 + ... + 4162371.

It is an arithmetic number, because the mean of its divisors is an integer number (4874688).

Almost surely, 2428718960 is an apocalyptic number.

428718960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428718960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779950080).

428718960 is an abundant number, since it is smaller than the sum of its proper divisors (1131181200).

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

428718960 is a wasteful number, since it uses less digits than its factorization.

428718960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 428718960 is about 20705.5296961947. The cubic root of 428718960 is about 754.0339441597.

The spelling of 428718960 in words is "four hundred twenty-eight million, seven hundred eighteen thousand, nine hundred sixty".