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30253308 = 2233896481
BaseRepresentation
bin111001101101…
…0000011111100
32002221000201220
41303122003330
530221101213
63000233340
7515102031
oct163320374
962830656
1030253308
1116093838
12a16b850
136363387
144037388
1529c8e23
hex1cda0fc

30253308 has 24 divisors (see below), whose sum is σ = 70783440. Its totient is φ = 10056960.

The previous prime is 30253291. The next prime is 30253331. The reversal of 30253308 is 80335203.

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, 1428 + ... + 7908.

It is an arithmetic number, because the mean of its divisors is an integer number (2949310).

Almost surely, 230253308 is an apocalyptic number.

It is an amenable number.

30253308 is an abundant number, since it is smaller than the sum of its proper divisors (40530132).

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

30253308 is a wasteful number, since it uses less digits than its factorization.

30253308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6877 (or 6875 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 30253308 is about 5500.3007190516. The cubic root of 30253308 is about 311.5953415987.

The spelling of 30253308 in words is "thirty million, two hundred fifty-three thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 389 778 1167 1556 2334 4668 6481 12962 19443 25924 38886 77772 2521109 5042218 7563327 10084436 15126654 30253308