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30232140053 = 74729404557
BaseRepresentation
bin11100001001111110…
…011101100100010101
32220000221002211122212
4130021332131210111
5443403411440203
621515523403205
72120115644003
oct341176354425
986027084585
1030232140053
1111904289315
125a38823505
132b0a4c348b
14166b1d5a73
15bbe1d11d8
hex709f9d915

30232140053 has 4 divisors (see below), whose sum is σ = 30232619340. Its totient is φ = 30231660768.

The previous prime is 30232140011. The next prime is 30232140083. The reversal of 30232140053 is 35004123203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22911968689 + 7320171364 = 151367^2 + 85558^2 .

It is a cyclic number.

It is not a de Polignac number, because 30232140053 - 210 = 30232139029 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 (30232140083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127550 + ... + 277007.

It is an arithmetic number, because the mean of its divisors is an integer number (7558154835).

Almost surely, 230232140053 is an apocalyptic number.

It is an amenable number.

30232140053 is a deficient number, since it is larger than the sum of its proper divisors (479287).

30232140053 is an equidigital number, since it uses as much as digits as its factorization.

30232140053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479286.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 30232140053 its reverse (35004123203), we get a palindrome (65236263256).

The spelling of 30232140053 in words is "thirty billion, two hundred thirty-two million, one hundred forty thousand, fifty-three".

Divisors: 1 74729 404557 30232140053