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138750000125 = 5311100909091
BaseRepresentation
bin1000000100111000100…
…1001111101111111101
3111021010201121022021112
42001032021033233331
54233130000001000
6143424010011405
713011232353542
oct2011611175775
9437121538245
10138750000125
11539308377a0
1222a83116b65
13101129124b9
146a03604bc9
15392110b235
hex204e24fbfd

138750000125 has 16 divisors (see below), whose sum is σ = 188901820224. Its totient is φ = 100909090000.

The previous prime is 138750000119. The next prime is 138750000149. The reversal of 138750000125 is 521000057831.

It is not a de Polignac number, because 138750000125 - 224 = 138733222909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138750000091 and 138750000100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50453171 + ... + 50455920.

It is an arithmetic number, because the mean of its divisors is an integer number (11806363764).

Almost surely, 2138750000125 is an apocalyptic number.

It is an amenable number.

138750000125 is a deficient number, since it is larger than the sum of its proper divisors (50151820099).

138750000125 is a wasteful number, since it uses less digits than its factorization.

138750000125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100909117 (or 100909107 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 138750000125 its reverse (521000057831), we get a palindrome (659750057956).

The spelling of 138750000125 in words is "one hundred thirty-eight billion, seven hundred fifty million, one hundred twenty-five", and thus it is an aban number.

Divisors: 1 5 11 25 55 125 275 1375 100909091 504545455 1110000001 2522727275 5550000005 12613636375 27750000025 138750000125