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30110220321 = 310036740107
BaseRepresentation
bin11100000010101101…
…011000000000100001
32212201102200200020020
4130002231120000201
5443131204022241
621455450304053
72114105435616
oct340255300041
985642620206
1030110220321
1111851486205
125a03a28029
132abb17681c
141658d3a50d
15bb364bb66
hex702b58021

30110220321 has 4 divisors (see below), whose sum is σ = 40146960432. Its totient is φ = 20073480212.

The previous prime is 30110220317. The next prime is 30110220397. The reversal of 30110220321 is 12302201103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12302201103 = 34100733701.

It is a cyclic number.

It is not a de Polignac number, because 30110220321 - 22 = 30110220317 is a prime.

It is a super-2 number, since 2×301102203212 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30110220321.

It is not an unprimeable number, because it can be changed into a prime (30110227321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5018370051 + ... + 5018370056.

It is an arithmetic number, because the mean of its divisors is an integer number (10036740108).

Almost surely, 230110220321 is an apocalyptic number.

It is an amenable number.

30110220321 is a deficient number, since it is larger than the sum of its proper divisors (10036740111).

30110220321 is a wasteful number, since it uses less digits than its factorization.

30110220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10036740110.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30110220321 its reverse (12302201103), we get a palindrome (42412421424).

The spelling of 30110220321 in words is "thirty billion, one hundred ten million, two hundred twenty thousand, three hundred twenty-one".

Divisors: 1 3 10036740107 30110220321