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30221011120 = 245377762639
BaseRepresentation
bin11100001001010100…
…000000100010110000
32220000011011102122011
4130021110000202300
5443343034323440
621514445052304
72116622233066
oct341124004260
986004142564
1030221011120
11118a8a77a53
125a34b57094
132b080c7b01
14166993a036
15bbd2339ea
hex7095008b0

30221011120 has 20 divisors (see below), whose sum is σ = 70263851040. Its totient is φ = 12088404416.

The previous prime is 30221011111. The next prime is 30221011123. The reversal of 30221011120 is 2111012203.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 30221011120.

It is not an unprimeable number, because it can be changed into a prime (30221011123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188881240 + ... + 188881399.

It is an arithmetic number, because the mean of its divisors is an integer number (3513192552).

Almost surely, 230221011120 is an apocalyptic number.

It is an amenable number.

30221011120 is an abundant number, since it is smaller than the sum of its proper divisors (40042839920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30221011120 is a wasteful number, since it uses less digits than its factorization.

30221011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377762652 (or 377762646 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30221011120 its reverse (2111012203), we get a palindrome (32332023323).

The spelling of 30221011120 in words is "thirty billion, two hundred twenty-one million, eleven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 377762639 755525278 1511050556 1888813195 3022101112 3777626390 6044202224 7555252780 15110505560 30221011120