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30539531901 = 317880767993
BaseRepresentation
bin11100011100010011…
…000100011001111101
32220211100111222000010
4130130103010121331
51000021110010101
622010224053433
72130540511104
oct343423043175
986740458003
1030539531901
1111a5185136a
125b03764279
132b590ab948
141699d7103b
15bdb1a02d6
hex71c4c467d

30539531901 has 16 divisors (see below), whose sum is σ = 43120162944. Its totient is φ = 19159601664.

The previous prime is 30539531873. The next prime is 30539531993. The reversal of 30539531901 is 10913593503.

It is not a de Polignac number, because 30539531901 - 29 = 30539531389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30539531901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30539538901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415161 + ... + 483153.

It is an arithmetic number, because the mean of its divisors is an integer number (2695010184).

Almost surely, 230539531901 is an apocalyptic number.

It is an amenable number.

30539531901 is a deficient number, since it is larger than the sum of its proper divisors (12580631043).

30539531901 is a wasteful number, since it uses less digits than its factorization.

30539531901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76820.

The product of its (nonzero) digits is 54675, while the sum is 39.

The spelling of 30539531901 in words is "thirty billion, five hundred thirty-nine million, five hundred thirty-one thousand, nine hundred one".

Divisors: 1 3 17 51 8807 26421 67993 149719 203979 449157 1155881 3467643 598814351 1796443053 10179843967 30539531901