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30108455520 = 25351113431012
BaseRepresentation
bin11100000010100110…
…101001001001100000
32212201022101000101020
4130002212221021200
5443130231034040
621455344405440
72114054435463
oct340246511140
985638330336
1030108455520
11118504902a0
125a03316880
132aba9a9470
1416589db2da
15bb33edcd0
hex7029a9260

30108455520 has 576 divisors, whose sum is σ = 115153581312. Its totient is φ = 6515712000.

The previous prime is 30108455483. The next prime is 30108455521. The reversal of 30108455520 is 2555480103.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30108455521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 298103470 + ... + 298103570.

It is an arithmetic number, because the mean of its divisors is an integer number (199919412).

Almost surely, 230108455520 is an apocalyptic number.

30108455520 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 30108455520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57576790656).

30108455520 is an abundant number, since it is smaller than the sum of its proper divisors (85045125792).

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

30108455520 is a wasteful number, since it uses less digits than its factorization.

30108455520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 30108455520 in words is "thirty billion, one hundred eight million, four hundred fifty-five thousand, five hundred twenty".