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30110401420 = 22511136865461
BaseRepresentation
bin11100000010101110…
…000100001110001100
32212201110000212122121
4130002232010032030
5443131230321140
621455454222324
72114110121611
oct340256041614
985643025577
1030110401420
111185159a280
125a03ab49a4
132abb20b098
141658d86508
15bb368564a
hex702b8438c

30110401420 has 24 divisors (see below), whose sum is σ = 68980192848. Its totient is φ = 10949236800.

The previous prime is 30110401403. The next prime is 30110401423. The reversal of 30110401420 is 2410401103.

It is a junction number, because it is equal to n+sod(n) for n = 30110401394 and 30110401403.

It is not an unprimeable number, because it can be changed into a prime (30110401423) 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, 68432511 + ... + 68432950.

It is an arithmetic number, because the mean of its divisors is an integer number (2874174702).

Almost surely, 230110401420 is an apocalyptic number.

It is an amenable number.

30110401420 is an abundant number, since it is smaller than the sum of its proper divisors (38869791428).

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

30110401420 is a wasteful number, since it uses less digits than its factorization.

30110401420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136865481 (or 136865479 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 30110401420 its reverse (2410401103), we get a palindrome (32520802523).

The spelling of 30110401420 in words is "thirty billion, one hundred ten million, four hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 136865461 273730922 547461844 684327305 1368654610 1505520071 2737309220 3011040142 6022080284 7527600355 15055200710 30110401420