Base | Representation |
---|---|
bin | 111010010111… |
… | …1111001001110 |
3 | 2010120220000000 |
4 | 1310233321032 |
5 | 30313324003 |
6 | 3011545130 |
7 | 521065023 |
oct | 164577116 |
9 | 63526000 |
10 | 30604878 |
11 | 16303997 |
12 | a2bb1a6 |
13 | 64573c5 |
14 | 40c954a |
15 | 2a481a3 |
hex | 1d2fe4e |
30604878 has 32 divisors (see below), whose sum is σ = 68860320. Its totient is φ = 10200168.
The previous prime is 30604867. The next prime is 30604897. The reversal of 30604878 is 87840603.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
30604878 is a modest number, since divided by 4878 gives 306 as remainder.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 876 + ... + 7872.
It is an arithmetic number, because the mean of its divisors is an integer number (2151885).
Almost surely, 230604878 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30604878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34430160).
30604878 is an abundant number, since it is smaller than the sum of its proper divisors (38255442).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30604878 is an frugal number, since it uses more digits than its factorization.
30604878 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7020 (or 7002 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 36.
The square root of 30604878 is about 5532.1675679610. The cubic root of 30604878 is about 312.7976998826.
The spelling of 30604878 in words is "thirty million, six hundred four thousand, eight hundred seventy-eight".
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