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428487645 = 3528565843
BaseRepresentation
bin11001100010100…
…011001111011101
31002212021102112210
4121202203033131
51334143101040
6110303551033
713422041055
oct3142431735
91085242483
10428487645
111aa963123
12bb5bb479
136aa070b1
1440c9c565
152793e480
hex198a33dd

428487645 has 8 divisors (see below), whose sum is σ = 685580256. Its totient is φ = 228526736.

The previous prime is 428487643. The next prime is 428487671. The reversal of 428487645 is 546784824.

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

It is a cyclic number.

It is not a de Polignac number, because 428487645 - 21 = 428487643 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 428487594 and 428487603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428487643) 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, 14282907 + ... + 14282936.

It is an arithmetic number, because the mean of its divisors is an integer number (85697532).

Almost surely, 2428487645 is an apocalyptic number.

It is an amenable number.

428487645 is a deficient number, since it is larger than the sum of its proper divisors (257092611).

428487645 is a wasteful number, since it uses less digits than its factorization.

428487645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28565851.

The product of its digits is 1720320, while the sum is 48.

The square root of 428487645 is about 20699.9431158639. The cubic root of 428487645 is about 753.8983069422.

The spelling of 428487645 in words is "four hundred twenty-eight million, four hundred eighty-seven thousand, six hundred forty-five".