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30389651040 = 2535723747743
BaseRepresentation
bin11100010011010111…
…010100011001100000
32220102220111020010010
4130103113110121200
5444214222313130
621543311404520
72124040525500
oct342327243140
986386436103
1030389651040
1111985190691
125a81523740
132b34022048
1416840b7a00
15bcce460b0
hex7135d4660

30389651040 has 576 divisors, whose sum is σ = 116956514304. Its totient is φ = 6605770752.

The previous prime is 30389651011. The next prime is 30389651059. The reversal of 30389651040 is 4015698303.

It is a self number, because there is not a number n which added to its sum of digits gives 30389651040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40900909 + ... + 40901651.

It is an arithmetic number, because the mean of its divisors is an integer number (203049504).

Almost surely, 230389651040 is an apocalyptic number.

30389651040 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 30389651040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58478257152).

30389651040 is an abundant number, since it is smaller than the sum of its proper divisors (86566863264).

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

30389651040 is a wasteful number, since it uses less digits than its factorization.

30389651040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 30389651040 in words is "thirty billion, three hundred eighty-nine million, six hundred fifty-one thousand, forty".