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381092 = 2295273
BaseRepresentation
bin1011101000010100100
3201100202112
41131002210
544143332
612100152
73145025
oct1350244
9640675
10381092
11240358
12164658
131045ca
149cc4c
1577db2
hex5d0a4

381092 has 6 divisors (see below), whose sum is σ = 666918. Its totient is φ = 190544.

The previous prime is 381077. The next prime is 381097. The reversal of 381092 is 290183.

381092 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 376996 + 4096 = 614^2 + 64^2 .

It is a super-3 number, since 3×3810923 = 166039245333392064, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 381092.

It is not an unprimeable number, because it can be changed into a prime (381097) by changing a digit.

381092 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47633 + ... + 47640.

It is an arithmetic number, because the mean of its divisors is an integer number (111153).

2381092 is an apocalyptic number.

It is an amenable number.

381092 is a deficient number, since it is larger than the sum of its proper divisors (285826).

381092 is a wasteful number, since it uses less digits than its factorization.

381092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95277 (or 95275 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 381092 is about 617.3264938426. The cubic root of 381092 is about 72.5008798942.

Subtracting from 381092 its reverse (290183), we obtain a palindrome (90909).

The spelling of 381092 in words is "three hundred eighty-one thousand, ninety-two".

Divisors: 1 2 4 95273 190546 381092