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30221031130 = 2510129921813
BaseRepresentation
bin11100001001010100…
…000101011011011010
32220000011012110002021
4130021110011123122
5443343040444010
621514445325054
72116622345323
oct341124053332
986004173067
1030221031130
11118a8a90a94
125a34b6678a
132b08103c54
14166994344a
15bbd2398da
hex7095056da

30221031130 has 16 divisors (see below), whose sum is σ = 54936450504. Its totient is φ = 11968724800.

The previous prime is 30221031119. The next prime is 30221031133. The reversal of 30221031130 is 3113012203.

It can be written as a sum of positive squares in 4 ways, for example, as 29711761641 + 509269489 = 172371^2 + 22567^2 .

It is a super-3 number, since 3×302210311303 (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30221031133) 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, 14959897 + ... + 14961916.

Almost surely, 230221031130 is an apocalyptic number.

30221031130 is a deficient number, since it is larger than the sum of its proper divisors (24715419374).

30221031130 is a wasteful number, since it uses less digits than its factorization.

30221031130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29921921.

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

Adding to 30221031130 its reverse (3113012203), we get a palindrome (33334043333).

The spelling of 30221031130 in words is "thirty billion, two hundred twenty-one million, thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 101 202 505 1010 29921813 59843626 149609065 299218130 3022103113 6044206226 15110515565 30221031130