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30220122120 = 2335251834351
BaseRepresentation
bin11100001001010000…
…100111100000001000
32220000002111021011020
4130021100213200020
5443342322401440
621514414032440
72116611541206
oct341120474010
986002437136
1030220122120
11118a8520041
125a347a8720
132b07b76286
141669788076
15bbd10a3d0
hex709427808

30220122120 has 32 divisors (see below), whose sum is σ = 90660366720. Its totient is φ = 8058699200.

The previous prime is 30220122113. The next prime is 30220122139. The reversal of 30220122120 is 2122102203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30220122120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125917056 + ... + 125917295.

It is an arithmetic number, because the mean of its divisors is an integer number (2833136460).

Almost surely, 230220122120 is an apocalyptic number.

30220122120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30220122120 is an abundant number, since it is smaller than the sum of its proper divisors (60440244600).

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

30220122120 is a wasteful number, since it uses less digits than its factorization.

30220122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251834365 (or 251834361 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 30220122120 its reverse (2122102203), we get a palindrome (32342224323).

The spelling of 30220122120 in words is "thirty billion, two hundred twenty million, one hundred twenty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 251834351 503668702 755503053 1007337404 1259171755 1511006106 2014674808 2518343510 3022012212 3777515265 5036687020 6044024424 7555030530 10073374040 15110061060 30220122120