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30412111020 = 22354919103043
BaseRepresentation
bin11100010100101100…
…111111110010101100
32220111110202022102020
4130110230333302230
5444241000023040
621545433030140
72124432451464
oct342454776254
986443668366
1030412111020
1111996931155
125a88b55350
132b38887085
141687082ba4
15bcedd0cd0
hex714b3fcac

30412111020 has 48 divisors (see below), whose sum is σ = 85172048640. Its totient is φ = 8108168896.

The previous prime is 30412111013. The next prime is 30412111021. The reversal of 30412111020 is 2011121403.

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

It is not an unprimeable number, because it can be changed into a prime (30412111021) 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, 243619 + ... + 346661.

It is an arithmetic number, because the mean of its divisors is an integer number (1774417680).

Almost surely, 230412111020 is an apocalyptic number.

30412111020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30412111020 is an abundant number, since it is smaller than the sum of its proper divisors (54759937620).

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

30412111020 is a wasteful number, since it uses less digits than its factorization.

30412111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107974 (or 107972 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 30412111020 its reverse (2011121403), we get a palindrome (32423232423).

The spelling of 30412111020 in words is "thirty billion, four hundred twelve million, one hundred eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4919 9838 14757 19676 24595 29514 49190 59028 73785 98380 103043 147570 206086 295140 309129 412172 515215 618258 1030430 1236516 1545645 2060860 3091290 6182580 506868517 1013737034 1520605551 2027474068 2534342585 3041211102 5068685170 6082422204 7603027755 10137370340 15206055510 30412111020