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30501540000 = 253254414133
BaseRepresentation
bin11100011010000010…
…001001000010100000
32220201201000202220200
4130122002021002200
5444431343240000
622002345505200
72126566545411
oct343202110240
986651022820
1030501540000
1111a323624a8
125ab2aa2200
132b51269129
141694cc1808
15bd7b98500
hex71a0890a0

30501540000 has 360 divisors, whose sum is σ = 111059240292. Its totient is φ = 7933440000.

The previous prime is 30501539993. The next prime is 30501540007. The reversal of 30501540000 is 4510503.

It is an interprime number because it is at equal distance from previous prime (30501539993) and next prime (30501540007).

It can be written as a sum of positive squares in 10 ways, for example, as 5551442064 + 24950097936 = 74508^2 + 157956^2 .

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30501540007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 7377934 + ... + 7382066.

Almost surely, 230501540000 is an apocalyptic number.

30501540000 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 30501540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55529620146).

30501540000 is an abundant number, since it is smaller than the sum of its proper divisors (80557700292).

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

30501540000 is a wasteful number, since it uses less digits than its factorization.

30501540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210 (or 4184 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The spelling of 30501540000 in words is "thirty billion, five hundred one million, five hundred forty thousand".