Search a number
-
+
385100 = 22523851
BaseRepresentation
bin1011110000001001100
3201120020222
41132001030
544310400
612130512
73162512
oct1360114
9646228
10385100
11243371
12166a38
13106391
14a04b2
1579185
hex5e04c

385100 has 18 divisors (see below), whose sum is σ = 835884. Its totient is φ = 154000.

The previous prime is 385087. The next prime is 385109. The reversal of 385100 is 1583.

It is a super-3 number, since 3×3851003 = 171333312153000000, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (385109) 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, 1826 + ... + 2025.

It is an arithmetic number, because the mean of its divisors is an integer number (46438).

2385100 is an apocalyptic number.

It is an amenable number.

385100 is an abundant number, since it is smaller than the sum of its proper divisors (450784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385100 is a wasteful number, since it uses less digits than its factorization.

385100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865 (or 3858 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 385100 is about 620.5642593640. The cubic root of 385100 is about 72.7541614590.

Adding to 385100 its reverse (1583), we get a palindrome (386683).

The spelling of 385100 in words is "three hundred eighty-five thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 3851 7702 15404 19255 38510 77020 96275 192550 385100