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30850380 = 223251115581
BaseRepresentation
bin111010110101…
…1110101001100
32011001100202200
41311223311030
530344203010
63021121500
7523136541
oct165536514
964040680
1030850380
1116461390
12a3b9290
136512082
144150bc8
152a95cc0
hex1d6bd4c

30850380 has 72 divisors (see below), whose sum is σ = 102093264. Its totient is φ = 7478400.

The previous prime is 30850331. The next prime is 30850439. The reversal of 30850380 is 8305803.

It is a super-2 number, since 2×308503802 = 1903491892288800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5811 + ... + 9770.

It is an arithmetic number, because the mean of its divisors is an integer number (1417962).

Almost surely, 230850380 is an apocalyptic number.

30850380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30850380 is an abundant number, since it is smaller than the sum of its proper divisors (71242884).

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

30850380 is a wasteful number, since it uses less digits than its factorization.

30850380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15607 (or 15602 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 30850380 is about 5554.3118385629. The cubic root of 30850380 is about 313.6318592468.

The spelling of 30850380 in words is "thirty million, eight hundred fifty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980 15581 31162 46743 62324 77905 93486 140229 155810 171391 186972 233715 280458 311620 342782 467430 514173 560916 685564 701145 856955 934860 1028346 1402290 1542519 1713910 2056692 2570865 2804580 3085038 3427820 5141730 6170076 7712595 10283460 15425190 30850380