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2538742143 = 371794311567
BaseRepresentation
bin1001011101010010…
…0010000101111111
320112221002110111210
42113110202011333
520144404222033
61055530015503
7116624644410
oct22724420577
96487073453
102538742143
111093065603
125aa277593
13315c755b2
141a1257807
15ecd2ed63
hex9752217f

2538742143 has 32 divisors (see below), whose sum is σ = 3901685760. Its totient is φ = 1438339680.

The previous prime is 2538742109. The next prime is 2538742159. The reversal of 2538742143 is 3412478352.

It is not a de Polignac number, because 2538742143 - 26 = 2538742079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538742163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1619346 + ... + 1620912.

It is an arithmetic number, because the mean of its divisors is an integer number (121927680).

Almost surely, 22538742143 is an apocalyptic number.

2538742143 is a deficient number, since it is larger than the sum of its proper divisors (1362943617).

2538742143 is a wasteful number, since it uses less digits than its factorization.

2538742143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187.

The product of its digits is 161280, while the sum is 39.

The square root of 2538742143 is about 50385.9319949527. The cubic root of 2538742143 is about 1364.1837253557.

The spelling of 2538742143 in words is "two billion, five hundred thirty-eight million, seven hundred forty-two thousand, one hundred forty-three".

Divisors: 1 3 7 21 179 431 537 1253 1293 1567 3017 3759 4701 9051 10969 32907 77149 231447 280493 540043 675377 841479 1620129 1963451 2026131 4727639 5890353 14182917 120892483 362677449 846247381 2538742143