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388134 = 23221563
BaseRepresentation
bin1011110110000100110
3201201102100
41132300212
544410014
612152530
73204405
oct1366046
9651370
10388134
1124567a
12168746
13107886
14a163c
157a009
hex5ec26

388134 has 12 divisors (see below), whose sum is σ = 840996. Its totient is φ = 129372.

The previous prime is 388133. The next prime is 388159. The reversal of 388134 is 431883.

388134 = 3102 + 3112 + ... + 3132.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 388098 and 388107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388133) 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, 10764 + ... + 10799.

It is an arithmetic number, because the mean of its divisors is an integer number (70083).

2388134 is an apocalyptic number.

388134 is an abundant number, since it is smaller than the sum of its proper divisors (452862).

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

388134 is a wasteful number, since it uses less digits than its factorization.

388134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21571 (or 21568 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 388134 is about 623.0040128282. The cubic root of 388134 is about 72.9447257817.

The spelling of 388134 in words is "three hundred eighty-eight thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 18 21563 43126 64689 129378 194067 388134