Search a number
-
+
30023800 = 2352197901
BaseRepresentation
bin111001010001…
…0000001111000
32002111100220121
41302202001320
530141230200
62551303024
7513124642
oct162420170
962440817
1030023800
1115a47364
12a07aa74
1362b2a81
143db7892
152980e1a
hex1ca2078

30023800 has 48 divisors (see below), whose sum is σ = 73488600. Its totient is φ = 11376000.

The previous prime is 30023797. The next prime is 30023831. The reversal of 30023800 is 832003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151 + ... + 7750.

Almost surely, 230023800 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 30023800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36744300).

30023800 is an abundant number, since it is smaller than the sum of its proper divisors (43464800).

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

30023800 is a wasteful number, since it uses less digits than its factorization.

30023800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936 (or 7927 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30023800 is about 5479.3977771284. The cubic root of 30023800 is about 310.8053979132.

Adding to 30023800 its reverse (832003), we get a palindrome (30855803).

The spelling of 30023800 in words is "thirty million, twenty-three thousand, eight hundred".

Divisors: 1 2 4 5 8 10 19 20 25 38 40 50 76 95 100 152 190 200 380 475 760 950 1900 3800 7901 15802 31604 39505 63208 79010 150119 158020 197525 300238 316040 395050 600476 750595 790100 1200952 1501190 1580200 3002380 3752975 6004760 7505950 15011900 30023800