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385228433 = 5316074523
BaseRepresentation
bin10110111101100…
…001111010010001
3222211212122001202
4112331201322101
51242104302213
6102120440545
712355246652
oct2675417221
9884778052
10385228433
111884a6907
12a9019155
1361a6bc25
143923b529
1523c46b58
hex16f61e91

385228433 has 8 divisors (see below), whose sum is σ = 392827968. Its totient is φ = 377641264.

The previous prime is 385228429. The next prime is 385228447. The reversal of 385228433 is 334822583.

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 385228433 - 22 = 385228429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (385228033) 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, 82910 + ... + 87432.

It is an arithmetic number, because the mean of its divisors is an integer number (49103496).

Almost surely, 2385228433 is an apocalyptic number.

It is an amenable number.

385228433 is a deficient number, since it is larger than the sum of its proper divisors (7599535).

385228433 is a wasteful number, since it uses less digits than its factorization.

385228433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6183.

The product of its digits is 138240, while the sum is 38.

The square root of 385228433 is about 19627.2370189999. The cubic root of 385228433 is about 727.6224853304.

The spelling of 385228433 in words is "three hundred eighty-five million, two hundred twenty-eight thousand, four hundred thirty-three".

Divisors: 1 53 1607 4523 85171 239719 7268461 385228433