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13896069831 = 337349210671
BaseRepresentation
bin11001111000100010…
…10011001011000111
31022212102220111012000
430330101103023013
5211424343213311
610214521000343
71001233434060
oct147421231307
938772814160
1013896069831
115990a72a36
1228399230b3
131405c20537
1495b781567
15564e54056
hex33c4532c7

13896069831 has 32 divisors (see below), whose sum is σ = 23595264000. Its totient is φ = 7917821280.

The previous prime is 13896069829. The next prime is 13896069857.

13896069831 is nontrivially palindromic in base 10.

13896069831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13896069831 - 21 = 13896069829 is a prime.

It is a super-2 number, since 2×138960698312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13896069821) 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 31 ways as a sum of consecutive naturals, for example, 39375 + ... + 171296.

It is an arithmetic number, because the mean of its divisors is an integer number (737352000).

Almost surely, 213896069831 is an apocalyptic number.

13896069831 is a deficient number, since it is larger than the sum of its proper divisors (9699194169).

13896069831 is a wasteful number, since it uses less digits than its factorization.

13896069831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211036 (or 211030 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 13896069831 in words is "thirteen billion, eight hundred ninety-six million, sixty-nine thousand, eight hundred thirty-one".

Divisors: 1 3 7 9 21 27 63 189 349 1047 2443 3141 7329 9423 21987 65961 210671 632013 1474697 1896039 4424091 5688117 13272273 39816819 73524179 220572537 514669253 661717611 1544007759 1985152833 4632023277 13896069831