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30221010331 = 3137233113081
BaseRepresentation
bin11100001001010100…
…000000010110011011
32220000011011101112221
4130021110000112123
5443343034312311
621514445044511
72116622230561
oct341124002633
986004141487
1030221010331
11118a8a773a6
125a34b56737
132b080c7645
141669939a31
15bbd233671
hex70950059b

30221010331 has 16 divisors (see below), whose sum is σ = 32176804608. Its totient is φ = 28333324800.

The previous prime is 30221010271. The next prime is 30221010341. The reversal of 30221010331 is 13301012203.

It is a cyclic number.

It is not a de Polignac number, because 30221010331 - 27 = 30221010203 is a prime.

It is a super-2 number, since 2×302210103312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30221010341) 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, 210711 + ... + 323791.

It is an arithmetic number, because the mean of its divisors is an integer number (2011050288).

Almost surely, 230221010331 is an apocalyptic number.

30221010331 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30221010331 is a deficient number, since it is larger than the sum of its proper divisors (1955794277).

30221010331 is a wasteful number, since it uses less digits than its factorization.

30221010331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113382.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30221010331 its reverse (13301012203), we get a palindrome (43522022534).

The spelling of 30221010331 in words is "thirty billion, two hundred twenty-one million, ten thousand, three hundred thirty-one".

Divisors: 1 31 37 233 1147 7223 8621 113081 267251 3505511 4183997 26347873 129703907 816784063 974871301 30221010331