Search a number
-
+
30123253200 = 2435225102711
BaseRepresentation
bin11100000011011111…
…000101110111010000
32212202100012210222110
4130003133011313100
5443143023100300
621501033505320
72114324266425
oct340337056720
985670183873
1030123253200
1111858877a87
125a08272240
132ac0a8a9a1
14165a96dd4c
15bb4873550
hex7037c5dd0

30123253200 has 60 divisors (see below), whose sum is σ = 96494824928. Its totient is φ = 8032867200.

The previous prime is 30123253187. The next prime is 30123253229. The reversal of 30123253200 is 235232103.

It is a tau number, because it is divible by the number of its divisors (60).

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, 12550156 + ... + 12552555.

Almost surely, 230123253200 is an apocalyptic number.

30123253200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30123253200 is an abundant number, since it is smaller than the sum of its proper divisors (66371571728).

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

30123253200 is a wasteful number, since it uses less digits than its factorization.

30123253200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25102732 (or 25102721 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 30123253200 its reverse (235232103), we get a palindrome (30358485303).

The spelling of 30123253200 in words is "thirty billion, one hundred twenty-three million, two hundred fifty-three thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 1200 25102711 50205422 75308133 100410844 125513555 150616266 200821688 251027110 301232532 376540665 401643376 502054220 602465064 627567775 753081330 1004108440 1204930128 1255135550 1506162660 1882703325 2008216880 2510271100 3012325320 3765406650 5020542200 6024650640 7530813300 10041084400 15061626600 30123253200