Base | Representation |
---|---|
bin | 111010010000… |
… | …1011000101000 |
3 | 2010110212110220 |
4 | 1310201120220 |
5 | 30304423243 |
6 | 3010410040 |
7 | 520426533 |
oct | 164413050 |
9 | 63425426 |
10 | 30545448 |
11 | 1627327a |
12 | a290920 |
13 | 643633b |
14 | 40b1a1a |
15 | 2a35783 |
hex | 1d21628 |
30545448 has 32 divisors (see below), whose sum is σ = 76522560. Its totient is φ = 10160640.
The previous prime is 30545419. The next prime is 30545453. The reversal of 30545448 is 84454503.
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, 14136 + ... + 16152.
It is an arithmetic number, because the mean of its divisors is an integer number (2391330).
Almost surely, 230545448 is an apocalyptic number.
It is an amenable number.
30545448 is an abundant number, since it is smaller than the sum of its proper divisors (45977112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30545448 is a wasteful number, since it uses less digits than its factorization.
30545448 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2657 (or 2653 counting only the distinct ones).
The product of its (nonzero) digits is 38400, while the sum is 33.
The square root of 30545448 is about 5526.7936455055. The cubic root of 30545448 is about 312.5951002294.
It can be divided in two parts, 305 and 45448, that added together give a triangular number (45753 = T302).
The spelling of 30545448 in words is "thirty million, five hundred forty-five thousand, four hundred forty-eight".
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