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30112100124 = 2232509341677
BaseRepresentation
bin11100000010110100…
…100010111100011100
32212201120020011211120
4130002310202330130
5443132144200444
621455554450540
72114130425241
oct340264427434
985646204746
1030112100124
111185254a567
125a04593a50
132abb684332
1416592a95c8
15bb38bdb19
hex702d22f1c

30112100124 has 12 divisors (see below), whose sum is σ = 70261566984. Its totient is φ = 10037366704.

The previous prime is 30112100101. The next prime is 30112100129. The reversal of 30112100124 is 42100121103.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112100129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254670827 + ... + 1254670850.

It is an arithmetic number, because the mean of its divisors is an integer number (5855130582).

Almost surely, 230112100124 is an apocalyptic number.

It is an amenable number.

30112100124 is an abundant number, since it is smaller than the sum of its proper divisors (40149466860).

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

30112100124 is a wasteful number, since it uses less digits than its factorization.

30112100124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509341684 (or 2509341682 counting only the distinct ones).

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

Adding to 30112100124 its reverse (42100121103), we get a palindrome (72212221227).

The spelling of 30112100124 in words is "thirty billion, one hundred twelve million, one hundred thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 2509341677 5018683354 7528025031 10037366708 15056050062 30112100124