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30428468980 = 2257131734183
BaseRepresentation
bin11100010101101011…
…011001011011110100
32220112121112101022121
4130111223121123310
5444304142001410
621551215405324
72125021501360
oct342553313364
986477471277
1030428468980
11119a5094128
125a92523844
132b3c093840
1416893002a0
15bd15629da
hex715ad96f4

30428468980 has 384 divisors, whose sum is σ = 86629616640. Its totient is φ = 8736030720.

The previous prime is 30428468977. The next prime is 30428469007. The reversal of 30428468980 is 8986482403.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 366608019 + ... + 366608101.

It is an arithmetic number, because the mean of its divisors is an integer number (225597960).

Almost surely, 230428468980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30428468980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43314808320).

30428468980 is an abundant number, since it is smaller than the sum of its proper divisors (56201147660).

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

30428468980 is a wasteful number, since it uses less digits than its factorization.

30428468980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 30428468980 in words is "thirty billion, four hundred twenty-eight million, four hundred sixty-eight thousand, nine hundred eighty".