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30830500 = 2253197313
BaseRepresentation
bin111010110011…
…0111110100100
32011000100111101
41311212332210
530343034000
63020445444
7523024561
oct165467644
964010441
1030830500
1116448458
12a3a9884
136505ccc
144147868
152a8ee6a
hex1d66fa4

30830500 has 48 divisors (see below), whose sum is σ = 67891824. Its totient is φ = 12230400.

The previous prime is 30830497. The next prime is 30830539. The reversal of 30830500 is 503803.

It can be written as a sum of positive squares in 8 ways, for example, as 10903204 + 19927296 = 3302^2 + 4464^2 .

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, 98344 + ... + 98656.

It is an arithmetic number, because the mean of its divisors is an integer number (1414413).

Almost surely, 230830500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30830500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33945912).

30830500 is an abundant number, since it is smaller than the sum of its proper divisors (37061324).

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

30830500 is a wasteful number, since it uses less digits than its factorization.

30830500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30830500 is about 5552.5219495289. The cubic root of 30830500 is about 313.5644765963.

The spelling of 30830500 in words is "thirty million, eight hundred thirty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 197 250 313 394 500 626 788 985 1252 1565 1970 3130 3940 4925 6260 7825 9850 15650 19700 24625 31300 39125 49250 61661 78250 98500 123322 156500 246644 308305 616610 1233220 1541525 3083050 6166100 7707625 15415250 30830500