Search a number
-
+
30919771200 = 2635221130529
BaseRepresentation
bin11100110010111101…
…100100010001000000
32221210212000010021010
4130302331210101000
51001310430134300
622112050000520
72143135501353
oct346275442100
987725003233
1030919771200
111212744a81a
125baab76140
132bb9ac1a06
1416d467029a
15c0e75da50
hex732f64440

30919771200 has 168 divisors, whose sum is σ = 101926725280. Its totient is φ = 8205926400.

The previous prime is 30919771193. The next prime is 30919771237. The reversal of 30919771200 is 217791903.

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, 997536 + ... + 1028064.

Almost surely, 230919771200 is an apocalyptic number.

30919771200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30919771200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50963362640).

30919771200 is an abundant number, since it is smaller than the sum of its proper divisors (71006954080).

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

30919771200 is a wasteful number, since it uses less digits than its factorization.

30919771200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30765 (or 30750 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 39.

The spelling of 30919771200 in words is "thirty billion, nine hundred nineteen million, seven hundred seventy-one thousand, two hundred".