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13898751050 = 252733807877
BaseRepresentation
bin11001111000110111…
…00001110001001010
31022212121221201010102
430330123201301022
5211431040013200
610215054245402
71001265302042
oct147433416112
938777851112
1013898751050
115992534418
12283a7b6862
13140664ba62
1495bc7c722
155652d36d5
hex33c6e1c4a

13898751050 has 24 divisors (see below), whose sum is σ = 26205816396. Its totient is φ = 5483341440.

The previous prime is 13898751049. The next prime is 13898751071. The reversal of 13898751050 is 5015789831.

It is a happy number.

13898751050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 8361456481 + 5537294569 = 91441^2 + 74413^2 .

It is a super-2 number, since 2×138987510502 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13898750986 and 13898751004.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1900289 + ... + 1907588.

Almost surely, 213898751050 is an apocalyptic number.

13898751050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13898751050 is a deficient number, since it is larger than the sum of its proper divisors (12307065346).

13898751050 is a wasteful number, since it uses less digits than its factorization.

13898751050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807962 (or 3807957 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 13898751050 in words is "thirteen billion, eight hundred ninety-eight million, seven hundred fifty-one thousand, fifty".

Divisors: 1 2 5 10 25 50 73 146 365 730 1825 3650 3807877 7615754 19039385 38078770 95196925 190393850 277975021 555950042 1389875105 2779750210 6949375525 13898751050