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30031011100 = 2252547549013
BaseRepresentation
bin11011111101111111…
…001101110100011100
32212111220122102121101
4123331333031310130
5443000414323400
621443540442444
72112124245136
oct337577156434
985456572541
1030031011100
11118107a5142
1259a13a9424
132aa793236c
14164c5dc056
15bab70256a
hex6fdfcdd1c

30031011100 has 36 divisors (see below), whose sum is σ = 65286548824. Its totient is φ = 11990422080.

The previous prime is 30031011097. The next prime is 30031011107. The reversal of 30031011100 is 111013003.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031011107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219807 + ... + 329206.

Almost surely, 230031011100 is an apocalyptic number.

It is an amenable number.

30031011100 is an abundant number, since it is smaller than the sum of its proper divisors (35255537724).

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

30031011100 is a wasteful number, since it uses less digits than its factorization.

30031011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549574 (or 549567 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 10.

Adding to 30031011100 its reverse (111013003), we get a palindrome (30142024103).

The spelling of 30031011100 in words is "thirty billion, thirty-one million, eleven thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 547 1094 2188 2735 5470 10940 13675 27350 54700 549013 1098026 2196052 2745065 5490130 10980260 13725325 27450650 54901300 300310111 600620222 1201240444 1501550555 3003101110 6006202220 7507752775 15015505550 30031011100