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30103000320 = 283541712693
BaseRepresentation
bin11100000010010001…
…110101010100000000
32212200221002212020210
4130002101311110000
5443122332002240
621455031434120
72113660165221
oct340221652400
985627085223
1030103000320
11118483a4768
125a01525940
132ab9819433
141657dbb248
15bb2bc2780
hex702475500

30103000320 has 288 divisors, whose sum is σ = 99910589184. Its totient is φ = 7718502400.

The previous prime is 30103000307. The next prime is 30103000321. The reversal of 30103000320 is 2300030103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30103000296 and 30103000305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30103000321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11176894 + ... + 11179586.

It is an arithmetic number, because the mean of its divisors is an integer number (346911768).

Almost surely, 230103000320 is an apocalyptic number.

30103000320 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 30103000320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49955294592).

30103000320 is an abundant number, since it is smaller than the sum of its proper divisors (69807588864).

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

30103000320 is a wasteful number, since it uses less digits than its factorization.

30103000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 30103000320 its reverse (2300030103), we get a palindrome (32403030423).

The spelling of 30103000320 in words is "thirty billion, one hundred three million, three hundred twenty", and thus it is an aban number.