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385061253 = 3128353751
BaseRepresentation
bin10110111100111…
…001000110000101
3222211120010201220
4112330321012011
51242033430003
6102113110553
712353652363
oct2674710605
9884503656
10385061253
111883a2245
12a8b58459
1361a10ac5
14391d6633
1523c12353
hex16f39185

385061253 has 4 divisors (see below), whose sum is σ = 513415008. Its totient is φ = 256707500.

The previous prime is 385061249. The next prime is 385061267. The reversal of 385061253 is 352160583.

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.

It is a cyclic number.

It is not a de Polignac number, because 385061253 - 22 = 385061249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385061233) 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, 64176873 + ... + 64176878.

It is an arithmetic number, because the mean of its divisors is an integer number (128353752).

Almost surely, 2385061253 is an apocalyptic number.

It is an amenable number.

385061253 is a deficient number, since it is larger than the sum of its proper divisors (128353755).

385061253 is a wasteful number, since it uses less digits than its factorization.

385061253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128353754.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 385061253 is about 19622.9776792412. The cubic root of 385061253 is about 727.5172131353.

The spelling of 385061253 in words is "three hundred eighty-five million, sixty-one thousand, two hundred fifty-three".

Divisors: 1 3 128353751 385061253