Search a number
-
+
30915065735136 = 253211239715312857
BaseRepresentation
bin1110000011101111110011…
…00000101110011111100000
311001110110012002022111001200
413001313321200232133200
513023003023312011021
6145430103553401200
76340353101660622
oct701677140563740
9131413162274050
1030915065735136
11993a007720720
123573668b69200
13143338024b91b
1478c4235c8c12
15389289ca2126
hex1c1df982e7e0

30915065735136 has 576 divisors, whose sum is σ = 101210007015936. Its totient is φ = 8859613593600.

The previous prime is 30915065735111. The next prime is 30915065735173. The reversal of 30915065735136 is 63153756051903.

30915065735136 is a `hidden beast` number, since 3 + 0 + 9 + 1 + 50 + 6 + 5 + 73 + 513 + 6 = 666.

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, 10820812620 + ... + 10820815476.

It is an arithmetic number, because the mean of its divisors is an integer number (175711817736).

Almost surely, 230915065735136 is an apocalyptic number.

30915065735136 is a gapful number since it is divisible by the number (36) 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 30915065735136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50605003507968).

30915065735136 is an abundant number, since it is smaller than the sum of its proper divisors (70294941280800).

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

30915065735136 is a wasteful number, since it uses less digits than its factorization.

30915065735136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 7654500, while the sum is 54.

The spelling of 30915065735136 in words is "thirty trillion, nine hundred fifteen billion, sixty-five million, seven hundred thirty-five thousand, one hundred thirty-six".