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385838053 = 1155133403
BaseRepresentation
bin10110111111110…
…110101111100101
3222220000121022021
4112333312233211
51242233304203
6102141503141
712363366166
oct2677665745
9886017267
10385838053
11188882927
12a9271ab1
1361c23553
143935976d
1523d175bd
hex16ff6be5

385838053 has 4 divisors (see below), whose sum is σ = 385883008. Its totient is φ = 385793100.

The previous prime is 385838023. The next prime is 385838071. The reversal of 385838053 is 350838583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 350838583 = 701500483.

It is a cyclic number.

It is not a de Polignac number, because 385838053 - 213 = 385829861 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 (385838023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5151 + ... + 28252.

It is an arithmetic number, because the mean of its divisors is an integer number (96470752).

Almost surely, 2385838053 is an apocalyptic number.

It is an amenable number.

385838053 is a deficient number, since it is larger than the sum of its proper divisors (44955).

385838053 is a wasteful number, since it uses less digits than its factorization.

385838053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44954.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 385838053 is about 19642.7608293743. The cubic root of 385838053 is about 728.0061013909.

The spelling of 385838053 in words is "three hundred eighty-five million, eight hundred thirty-eight thousand, fifty-three".

Divisors: 1 11551 33403 385838053