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13689357125 = 53372959861
BaseRepresentation
bin11001011111111001…
…10000001101000101
31022100000221101122212
430233330300031011
5211013433412000
610142214233205
7663143421113
oct145774601505
938300841585
1013689357125
115895315694
1227a0655805
1313a2155a22
1493c132ab3
15551c20c35
hex32ff30345

13689357125 has 16 divisors (see below), whose sum is σ = 17546061936. Its totient is φ = 10655496000.

The previous prime is 13689357103. The next prime is 13689357161. The reversal of 13689357125 is 52175398631.

It can be written as a sum of positive squares in 8 ways, for example, as 9247681 + 13680109444 = 3041^2 + 116962^2 .

It is not a de Polignac number, because 13689357125 - 210 = 13689356101 is a prime.

It is a Duffinian number.

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, 1475306 + ... + 1484555.

It is an arithmetic number, because the mean of its divisors is an integer number (1096628871).

Almost surely, 213689357125 is an apocalyptic number.

It is an amenable number.

13689357125 is a deficient number, since it is larger than the sum of its proper divisors (3856704811).

13689357125 is an equidigital number, since it uses as much as digits as its factorization.

13689357125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959913 (or 2959903 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 50.

The spelling of 13689357125 in words is "thirteen billion, six hundred eighty-nine million, three hundred fifty-seven thousand, one hundred twenty-five".

Divisors: 1 5 25 37 125 185 925 4625 2959861 14799305 73996525 109514857 369982625 547574285 2737871425 13689357125