Base | Representation |
---|---|
bin | 11100101001000110… |
… | …011001000010111100 |
3 | 2221101022122221102200 |
4 | 130221012121002330 |
5 | 1000441100444010 |
6 | 22043415351500 |
7 | 2136056225211 |
oct | 345106310274 |
9 | 87338587380 |
10 | 30754312380 |
11 | 1205200a0a0 |
12 | 5b63682590 |
13 | 2b9173c69c |
14 | 16ba6bdb08 |
15 | beee78cc0 |
hex | 7291990bc |
30754312380 has 576 divisors, whose sum is σ = 111306424320. Its totient is φ = 6793113600.
The previous prime is 30754312373. The next prime is 30754312429. The reversal of 30754312380 is 8321345703.
30754312380 is a `hidden beast` number, since 30 + 7 + 543 + 1 + 2 + 3 + 80 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 195887262 + ... + 195887418.
It is an arithmetic number, because the mean of its divisors is an integer number (193240320).
Almost surely, 230754312380 is an apocalyptic number.
30754312380 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 30754312380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55653212160).
30754312380 is an abundant number, since it is smaller than the sum of its proper divisors (80552111940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30754312380 is a wasteful number, since it uses less digits than its factorization.
30754312380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 370 (or 365 counting only the distinct ones).
The product of its (nonzero) digits is 60480, while the sum is 36.
The spelling of 30754312380 in words is "thirty billion, seven hundred fifty-four million, three hundred twelve thousand, three hundred eighty".
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