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30323121293 = 315991632997
BaseRepresentation
bin11100001111011001…
…100001110010001101
32220021021022011110102
4130033121201302031
5444100204340133
621532533420445
72122302164303
oct341731416215
986237264412
1030323121293
111195067a923
125a6319a725
132b232c9c2a
14167931a273
15bc71a37e8
hex70f661c8d

30323121293 has 8 divisors (see below), whose sum is σ = 31353561600. Its totient is φ = 29295948240.

The previous prime is 30323121277. The next prime is 30323121329. The reversal of 30323121293 is 39212132303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30323121293 - 24 = 30323121277 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 (30323121253) 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, 797930 + ... + 835067.

It is an arithmetic number, because the mean of its divisors is an integer number (3919195200).

Almost surely, 230323121293 is an apocalyptic number.

It is an amenable number.

30323121293 is a deficient number, since it is larger than the sum of its proper divisors (1030440307).

30323121293 is a wasteful number, since it uses less digits than its factorization.

30323121293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633627.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 30323121293 its reverse (39212132303), we get a palindrome (69535253596).

It can be divided in two parts, 30 and 323121293, that added together give a palindrome (323121323).

The spelling of 30323121293 in words is "thirty billion, three hundred twenty-three million, one hundred twenty-one thousand, two hundred ninety-three".

Divisors: 1 31 599 18569 1632997 50622907 978165203 30323121293