Search a number
-
+
30381019216 = 246728340503
BaseRepresentation
bin11100010010110110…
…011001000001010000
32220102022020200110221
4130102312121001100
5444210020103331
621542402402424
72123604255022
oct342266310120
986368220427
1030381019216
1111980325449
125a7a660414
132b322bc162
141682cac012
15bcc2dd711
hex712d99050

30381019216 has 20 divisors (see below), whose sum is σ = 59741782432. Its totient is φ = 14963785056.

The previous prime is 30381019189. The next prime is 30381019231. The reversal of 30381019216 is 61291018303.

It is a super-2 number, since 2×303810192162 (a number of 22 digits) 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 3 ways as a sum of consecutive naturals, for example, 14169180 + ... + 14171323.

Almost surely, 230381019216 is an apocalyptic number.

It is an amenable number.

30381019216 is a deficient number, since it is larger than the sum of its proper divisors (29360763216).

30381019216 is a wasteful number, since it uses less digits than its factorization.

30381019216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28340578 (or 28340572 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 30381019216 in words is "thirty billion, three hundred eighty-one million, nineteen thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 67 134 268 536 1072 28340503 56681006 113362012 226724024 453448048 1898813701 3797627402 7595254804 15190509608 30381019216