Base | Representation |
---|---|
bin | 11100110000001101… |
… | …011001110000111000 |
3 | 2221200122002220201102 |
4 | 130300031121300320 |
5 | 1001212114401330 |
6 | 22103320110532 |
7 | 2142035122631 |
oct | 346015316070 |
9 | 87618086642 |
10 | 30873590840 |
11 | 12103378834 |
12 | 5b97605448 |
13 | 2bb0373061 |
14 | 16cc48c888 |
15 | c0a68a945 |
hex | 730359c38 |
30873590840 has 32 divisors (see below), whose sum is σ = 70604364960. Its totient is φ = 12146985600.
The previous prime is 30873590771. The next prime is 30873590861. The reversal of 30873590840 is 4809537803.
It is a super-3 number, since 3×308735908403 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6324116 + ... + 6328995.
It is an arithmetic number, because the mean of its divisors is an integer number (2206386405).
Almost surely, 230873590840 is an apocalyptic number.
It is an amenable number.
30873590840 is an abundant number, since it is smaller than the sum of its proper divisors (39730774120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30873590840 is a wasteful number, since it uses less digits than its factorization.
30873590840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12653183 (or 12653179 counting only the distinct ones).
The product of its (nonzero) digits is 725760, while the sum is 47.
The spelling of 30873590840 in words is "thirty billion, eight hundred seventy-three million, five hundred ninety thousand, eight hundred forty".
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