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31200140320101 = 3243463917378857
BaseRepresentation
bin1110001100000010110010…
…10001111101110101100101
311002110201000102102212110100
413012001121101331311211
513042140341410220401
6150205051355214313
76400064363654604
oct706013121756545
9132421012385410
1031200140320101
119a399a5908775
1235ba967a47399
131454211b16bac
1479c14839da3b
153918c1e80b86
hex1c605947dd65

31200140320101 has 24 divisors (see below), whose sum is σ = 46124879440640. Its totient is φ = 20311989800256.

The previous prime is 31200140320079. The next prime is 31200140320109. The reversal of 31200140320101 is 10102304100213.

31200140320101 is a `hidden beast` number, since 3 + 1 + 200 + 1 + 40 + 320 + 101 = 666.

It is not a de Polignac number, because 31200140320101 - 29 = 31200140319589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200140320109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6894136 + ... + 10484721.

Almost surely, 231200140320101 is an apocalyptic number.

It is an amenable number.

31200140320101 is a deficient number, since it is larger than the sum of its proper divisors (14924739120539).

31200140320101 is a wasteful number, since it uses less digits than its factorization.

31200140320101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17383545 (or 17383542 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31200140320101 its reverse (10102304100213), we get a palindrome (41302444420314).

The spelling of 31200140320101 in words is "thirty-one trillion, two hundred billion, one hundred forty million, three hundred twenty thousand, one hundred one".

Divisors: 1 3 9 43 129 387 4639 13917 41751 199477 598431 1795293 17378857 52136571 156409713 747290851 2241872553 6725617659 80620517623 241861552869 725584658607 3466682257789 10400046773367 31200140320101