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30231131132 = 2247732202793
BaseRepresentation
bin11100001001111010…
…100111001111111100
32220000212012120200102
4130021322213033330
5443403132144012
621515450020232
72120104242356
oct341172471774
986025176612
1030231131132
111190375a2a4
125a38417678
132b0a22c197
14166b0120d6
15bbe0822c2
hex709ea73fc

30231131132 has 24 divisors (see below), whose sum is σ = 54770270016. Its totient is φ = 14591294208.

The previous prime is 30231131131. The next prime is 30231131137. The reversal of 30231131132 is 23113113203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231131131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087673 + ... + 1115120.

It is an arithmetic number, because the mean of its divisors is an integer number (2282094584).

Almost surely, 230231131132 is an apocalyptic number.

It is an amenable number.

30231131132 is a deficient number, since it is larger than the sum of its proper divisors (24539138884).

30231131132 is a wasteful number, since it uses less digits than its factorization.

30231131132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202917 (or 2202915 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30231131132 its reverse (23113113203), we get a palindrome (53344244335).

The spelling of 30231131132 in words is "thirty billion, two hundred thirty-one million, one hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 47 73 94 146 188 292 3431 6862 13724 2202793 4405586 8811172 103531271 160803889 207062542 321607778 414125084 643215556 7557782783 15115565566 30231131132