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30212021323 = 1131475918617
BaseRepresentation
bin11100001000110001…
…101101110001001011
32212222112020200221201
4130020301231301023
5443333234140243
621513524245031
72116452641551
oct341061556113
985875220851
1030212021323
11118a3997870
125a31b40777
132b0629acc3
141668679bd1
15bbc55a04d
hex708c6dc4b

30212021323 has 16 divisors (see below), whose sum is σ = 34030725120. Its totient is φ = 26572478400.

The previous prime is 30212021251. The next prime is 30212021339. The reversal of 30212021323 is 32312021203.

It is a cyclic number.

It is not a de Polignac number, because 30212021323 - 225 = 30178466891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30212021323.

It is not an unprimeable number, because it can be changed into a prime (30212021023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613511 + ... + 1632127.

It is an arithmetic number, because the mean of its divisors is an integer number (2126920320).

Almost surely, 230212021323 is an apocalyptic number.

30212021323 is a deficient number, since it is larger than the sum of its proper divisors (3818703797).

30212021323 is a wasteful number, since it uses less digits than its factorization.

30212021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23418.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30212021323 its reverse (32312021203), we get a palindrome (62524042526).

The spelling of 30212021323 in words is "thirty billion, two hundred twelve million, twenty-one thousand, three hundred twenty-three".

Divisors: 1 11 31 341 4759 18617 52349 147529 204787 577127 1622819 6348397 88598303 974581333 2746547393 30212021323