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30230132220 = 22325167945179
BaseRepresentation
bin11100001001110110…
…110011010111111100
32220000210022211102200
4130021312303113330
5443402403212340
621515412351500
72120062612161
oct341166632774
986023284380
1030230132220
1111903137852
125a38015590
132b09c6c602
14166ac32068
15bbde36330
hex709db35fc

30230132220 has 36 divisors (see below), whose sum is σ = 91698068280. Its totient is φ = 8061368544.

The previous prime is 30230132189. The next prime is 30230132239. The reversal of 30230132220 is 2223103203.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30230132193 and 30230132202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83972410 + ... + 83972769.

Almost surely, 230230132220 is an apocalyptic number.

30230132220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30230132220 is an abundant number, since it is smaller than the sum of its proper divisors (61467936060).

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

30230132220 is a wasteful number, since it uses less digits than its factorization.

30230132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167945194 (or 167945189 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30230132220 its reverse (2223103203), we get a palindrome (32453235423).

The spelling of 30230132220 in words is "thirty billion, two hundred thirty million, one hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 167945179 335890358 503835537 671780716 839725895 1007671074 1511506611 1679451790 2015342148 2519177685 3023013222 3358903580 5038355370 6046026444 7557533055 10076710740 15115066110 30230132220