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2038138543 = 7291162649
BaseRepresentation
bin111100101111011…
…1000011010101111
312021001010011110201
41321132320122233
513133230413133
6534124214331
7101335614610
oct17136703257
95231104421
102038138543
11956526721
1248a69a3a7
1326633b84c
14154985c07
15bdde7d7d
hex797b86af

2038138543 has 4 divisors (see below), whose sum is σ = 2329301200. Its totient is φ = 1746975888.

The previous prime is 2038138477. The next prime is 2038138561. The reversal of 2038138543 is 3458318302.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2038138543 - 213 = 2038130351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2038108543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145581318 + ... + 145581331.

It is an arithmetic number, because the mean of its divisors is an integer number (582325300).

Almost surely, 22038138543 is an apocalyptic number.

2038138543 is a deficient number, since it is larger than the sum of its proper divisors (291162657).

2038138543 is an equidigital number, since it uses as much as digits as its factorization.

2038138543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291162656.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2038138543 is about 45145.7477842598. The cubic root of 2038138543 is about 1267.8792686170.

The spelling of 2038138543 in words is "two billion, thirty-eight million, one hundred thirty-eight thousand, five hundred forty-three".

Divisors: 1 7 291162649 2038138543