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385941493 = 727876357
BaseRepresentation
bin10111000000001…
…111111111110101
3222220012212012101
4113000033333311
51242300111433
6102144022101
712364306600
oct2700177765
9886185171
10385941493
11188943613
12a9301931
1361c5b662
1439385337
1523d3807d
hex1700fff5

385941493 has 6 divisors (see below), whose sum is σ = 448952406. Its totient is φ = 330806952.

The previous prime is 385941481. The next prime is 385941511. The reversal of 385941493 is 394149583.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 205119684 + 180821809 = 14322^2 + 13447^2 .

It is not a de Polignac number, because 385941493 - 25 = 385941461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385941473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3938130 + ... + 3938227.

It is an arithmetic number, because the mean of its divisors is an integer number (74825401).

Almost surely, 2385941493 is an apocalyptic number.

It is an amenable number.

385941493 is a deficient number, since it is larger than the sum of its proper divisors (63010913).

385941493 is an equidigital number, since it uses as much as digits as its factorization.

385941493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7876371 (or 7876364 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 385941493 is about 19645.3936840166. The cubic root of 385941493 is about 728.0711530553.

It can be divided in two parts, 385 and 941493, that added together give a triangular number (941878 = T1372).

The spelling of 385941493 in words is "three hundred eighty-five million, nine hundred forty-one thousand, four hundred ninety-three".

Divisors: 1 7 49 7876357 55134499 385941493