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138741429386 = 27191019511859
BaseRepresentation
bin1000000100110110100…
…0100011010010001010
3111021010010110212102202
42001031220203102022
54233120301220021
6143423102200202
713011066456140
oct2011550432212
9437103425382
10138741429386
1153926a1343a
1222a80283062
1310110c01361
146a02413590
1539204b6a0b
hex204da2348a

138741429386 has 32 divisors (see below), whose sum is σ = 250606656000. Its totient is φ = 56275715952.

The previous prime is 138741429353. The next prime is 138741429389. The reversal of 138741429386 is 683924147831.

It is not an unprimeable number, because it can be changed into a prime (138741429389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15125 + ... + 526983.

It is an arithmetic number, because the mean of its divisors is an integer number (7831458000).

Almost surely, 2138741429386 is an apocalyptic number.

138741429386 is a deficient number, since it is larger than the sum of its proper divisors (111865226614).

138741429386 is a wasteful number, since it uses less digits than its factorization.

138741429386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512906.

The product of its digits is 6967296, while the sum is 56.

The spelling of 138741429386 in words is "one hundred thirty-eight billion, seven hundred forty-one million, four hundred twenty-nine thousand, three hundred eighty-six".

Divisors: 1 2 7 14 19 38 133 266 1019 2038 7133 14266 19361 38722 135527 271054 511859 1023718 3583013 7166026 9725321 19450642 68077247 136154494 521584321 1043168642 3651090247 7302180494 9910102099 19820204198 69370714693 138741429386