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30103200000 = 28325537113
BaseRepresentation
bin11100000010010010…
…100110000100000000
32212200221111000011100
4130002102212010000
5443122404400000
621455040014400
72113661656326
oct340222460400
985627430140
1030103200000
1111848520795
125a01601400
132ab98892a3
14165802dd16
15bb2c11a00
hex7024a6100

30103200000 has 648 divisors, whose sum is σ = 112404821256. Its totient is φ = 7741440000.

The previous prime is 30103199983. The next prime is 30103200053. The reversal of 30103200000 is 230103.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 29992697856 + 110502144 = 173184^2 + 10512^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 266399944 + ... + 266400056.

Almost surely, 230103200000 is an apocalyptic number.

30103200000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30103200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56202410628).

30103200000 is an abundant number, since it is smaller than the sum of its proper divisors (82301621256).

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

30103200000 is an equidigital number, since it uses as much as digits as its factorization.

30103200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

Adding to 30103200000 its reverse (230103), we get a palindrome (30103430103).

The spelling of 30103200000 in words is "thirty billion, one hundred three million, two hundred thousand".