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230615621142 = 23291325377133
BaseRepresentation
bin1101011011000111000…
…0110001111000010110
3211001020222222101022120
43112301300301320112
512234300044334032
6253535433040410
722442604302454
oct3266160617026
9731228871276
10230615621142
1189892562535
1238840856106
13189930bc12a
14b23a1bb9d4
155eeb15462c
hex35b1c31e16

230615621142 has 16 divisors (see below), whose sum is σ = 477135768240. Its totient is φ = 74221119392.

The previous prime is 230615621129. The next prime is 230615621143. The reversal of 230615621142 is 241126516032.

230615621142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230615621143) 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 7 ways as a sum of consecutive naturals, for example, 662688393 + ... + 662688740.

It is an arithmetic number, because the mean of its divisors is an integer number (29820985515).

Almost surely, 2230615621142 is an apocalyptic number.

230615621142 is an abundant number, since it is smaller than the sum of its proper divisors (246520147098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230615621142 is a wasteful number, since it uses less digits than its factorization.

230615621142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325377167.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 230615621142 in words is "two hundred thirty billion, six hundred fifteen million, six hundred twenty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 29 58 87 174 1325377133 2650754266 3976131399 7952262798 38435936857 76871873714 115307810571 230615621142