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30250121320 = 2353831974551
BaseRepresentation
bin11100001011000011…
…000011100001101000
32220002011221101022201
4130023003003201220
5443423012340240
621521405025544
72120424534346
oct341303034150
986064841281
1030250121320
111191344a971
125a428552b4
132b1114aa93
14166d756996
15bc0a83d9a
hex70b0c3868

30250121320 has 32 divisors (see below), whose sum is σ = 68240517120. Its totient is φ = 12068449600.

The previous prime is 30250121311. The next prime is 30250121327. The reversal of 30250121320 is 2312105203.

It is not an unprimeable number, because it can be changed into a prime (30250121327) 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, 971956 + ... + 1002595.

It is an arithmetic number, because the mean of its divisors is an integer number (2132516160).

Almost surely, 230250121320 is an apocalyptic number.

It is an amenable number.

30250121320 is an abundant number, since it is smaller than the sum of its proper divisors (37990395800).

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

30250121320 is a wasteful number, since it uses less digits than its factorization.

30250121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974945 (or 1974941 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 30250121320 its reverse (2312105203), we get a palindrome (32562226523).

The spelling of 30250121320 in words is "thirty billion, two hundred fifty million, one hundred twenty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 383 766 1532 1915 3064 3830 7660 15320 1974551 3949102 7898204 9872755 15796408 19745510 39491020 78982040 756253033 1512506066 3025012132 3781265165 6050024264 7562530330 15125060660 30250121320