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230031031321 = 7132647954973
BaseRepresentation
bin1101011000111011101…
…0101111110000011001
3210222202020222010211201
43112032322233300121
512232100421000241
6253401431154201
722422245335120
oct3261672576031
9728666863751
10230031031321
118961257a553
12386b8b15961
13188cbc5a7b0
14b1c26c6ab7
155eb4b7c931
hex358eeafc19

230031031321 has 16 divisors (see below), whose sum is σ = 283222369024. Its totient is φ = 181933625664.

The previous prime is 230031031303. The next prime is 230031031327. The reversal of 230031031321 is 123130130032.

It is not a de Polignac number, because 230031031321 - 213 = 230031023129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230031031327) 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, 236610 + ... + 718363.

It is an arithmetic number, because the mean of its divisors is an integer number (17701398064).

Almost surely, 2230031031321 is an apocalyptic number.

It is an amenable number.

230031031321 is a deficient number, since it is larger than the sum of its proper divisors (53191337703).

230031031321 is a wasteful number, since it uses less digits than its factorization.

230031031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957640.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 230031031321 its reverse (123130130032), we get a palindrome (353161161353).

The spelling of 230031031321 in words is "two hundred thirty billion, thirty-one million, thirty-one thousand, three hundred twenty-one".

Divisors: 1 7 13 91 2647 18529 34411 240877 954973 6684811 12414649 86902543 2527813531 17694694717 32861575903 230031031321