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30220121313 = 3231383282809
BaseRepresentation
bin11100001001010000…
…100111010011100001
32220000002111020001100
4130021100213103201
5443342322340223
621514414025013
72116611535644
oct341120472341
986002436040
1030220121313
11118a851a478
125a347a8169
132b07b75ab5
141669787a5b
15bbd10a043
hex7094274e1

30220121313 has 24 divisors (see below), whose sum is σ = 45177200640. Its totient is φ = 19445878080.

The previous prime is 30220121311. The next prime is 30220121333. The reversal of 30220121313 is 31312102203.

It is not a de Polignac number, because 30220121313 - 21 = 30220121311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30220121311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34548 + ... + 248261.

It is an arithmetic number, because the mean of its divisors is an integer number (1882383360).

Almost surely, 230220121313 is an apocalyptic number.

It is an amenable number.

30220121313 is a deficient number, since it is larger than the sum of its proper divisors (14957079327).

30220121313 is a wasteful number, since it uses less digits than its factorization.

30220121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283229 (or 283226 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30220121313 its reverse (31312102203), we get a palindrome (61532223516).

The spelling of 30220121313 in words is "thirty billion, two hundred twenty million, one hundred twenty-one thousand, three hundred thirteen".

Divisors: 1 3 9 31 93 279 383 1149 3447 11873 35619 106857 282809 848427 2545281 8767079 26301237 78903711 108315847 324947541 974842623 3357791257 10073373771 30220121313