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30015132000 = 2535371721019
BaseRepresentation
bin11011111101000010…
…101001000101100000
32212110210202200120120
4123331002221011200
5442432333211000
621442212240240
72111542261320
oct337502510540
985423680516
1030015132000
1111802839a17
125998010080
132aa4562849
14164a467280
15baa1176a0
hex6fd0a9160

30015132000 has 384 divisors, whose sum is σ = 118992706560. Its totient is φ = 6456729600.

The previous prime is 30015131987. The next prime is 30015132023. The reversal of 30015132000 is 23151003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1417491 + ... + 1438509.

It is an arithmetic number, because the mean of its divisors is an integer number (309876840).

Almost surely, 230015132000 is an apocalyptic number.

30015132000 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 30015132000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59496353280).

30015132000 is an abundant number, since it is smaller than the sum of its proper divisors (88977574560).

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

30015132000 is a wasteful number, since it uses less digits than its factorization.

30015132000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21071 (or 21053 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

Adding to 30015132000 its reverse (23151003), we get a palindrome (30038283003).

The spelling of 30015132000 in words is "thirty billion, fifteen million, one hundred thirty-two thousand".