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7134381 = 32792709
BaseRepresentation
bin11011001101110010101101
3111102110112100
4123031302231
53311300011
6412525313
7114432642
oct33156255
914373470
107134381
114033191
122480839
13162a437
14d39dc9
1595dd56
hex6cdcad

7134381 has 6 divisors (see below), whose sum is σ = 10305230. Its totient is φ = 4756248.

The previous prime is 7134353. The next prime is 7134397. The reversal of 7134381 is 1834317.

It can be written as a sum of positive squares in only one way, i.e., 5336100 + 1798281 = 2310^2 + 1341^2 .

It is not a de Polignac number, because 7134381 - 26 = 7134317 is a prime.

It is a super-2 number, since 2×71343812 = 101798784506322, which contains 22 as substring.

It is a Duffinian number.

7134381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7134311) 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, 396346 + ... + 396363.

Almost surely, 27134381 is an apocalyptic number.

It is an amenable number.

7134381 is a deficient number, since it is larger than the sum of its proper divisors (3170849).

7134381 is a wasteful number, since it uses less digits than its factorization.

7134381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792715 (or 792712 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 7134381 is about 2671.0262072844. The cubic root of 7134381 is about 192.5094704960.

Adding to 7134381 its reverse (1834317), we get a palindrome (8968698).

The spelling of 7134381 in words is "seven million, one hundred thirty-four thousand, three hundred eighty-one".

Divisors: 1 3 9 792709 2378127 7134381