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30708230 = 2571932273
BaseRepresentation
bin111010100100…
…1001000000110
32010210010202212
41311021020012
530330130410
63014103422
7522005240
oct165111006
963703685
1030708230
1116374603
12a34ab72
136492467
144115090
152a68b05
hex1d49206

30708230 has 32 divisors (see below), whose sum is σ = 63526464. Its totient is φ = 10469376.

The previous prime is 30708217. The next prime is 30708241. The reversal of 30708230 is 3280703.

It is a junction number, because it is equal to n+sod(n) for n = 30708196 and 30708205.

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, 12374 + ... + 14646.

It is an arithmetic number, because the mean of its divisors is an integer number (1985202).

Almost surely, 230708230 is an apocalyptic number.

30708230 is an abundant number, since it is smaller than the sum of its proper divisors (32818234).

30708230 is a wasteful number, since it uses less digits than its factorization.

30708230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 30708230 is about 5541.5006992691. The cubic root of 30708230 is about 313.1494079271.

Adding to 30708230 its reverse (3280703), we get a palindrome (33988933).

The spelling of 30708230 in words is "thirty million, seven hundred eight thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 193 386 965 1351 1930 2273 2702 4546 6755 11365 13510 15911 22730 31822 79555 159110 438689 877378 2193445 3070823 4386890 6141646 15354115 30708230