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38993055542 = 2737390719267
BaseRepresentation
bin100100010100001010…
…101100111100110110
310201122111022110101022
4210110022230330312
51114324210234132
625525124301142
72550166334450
oct442412547466
9121574273338
1038993055542
111559a621841
1276828417b2
1338a558353c
141c5c9732d0
1510333d2e12
hex9142acf36

38993055542 has 32 divisors (see below), whose sum is σ = 68673001728. Its totient is φ = 16254647136.

The previous prime is 38993055529. The next prime is 38993055547. The reversal of 38993055542 is 24555039983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38993055547) 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 15 ways as a sum of consecutive naturals, for example, 2014193 + ... + 2033459.

It is an arithmetic number, because the mean of its divisors is an integer number (2146031304).

Almost surely, 238993055542 is an apocalyptic number.

38993055542 is a deficient number, since it is larger than the sum of its proper divisors (29679946186).

38993055542 is a wasteful number, since it uses less digits than its factorization.

38993055542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23220.

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 38993055542 in words is "thirty-eight billion, nine hundred ninety-three million, fifty-five thousand, five hundred forty-two".

Divisors: 1 2 7 14 37 74 259 518 3907 7814 19267 27349 38534 54698 134869 144559 269738 289118 712879 1011913 1425758 2023826 4990153 9980306 75276169 150552338 526933183 1053866366 2785218253 5570436506 19496527771 38993055542