Search a number
-
+
30422155680 = 2532572431153
BaseRepresentation
bin11100010101010011…
…010100000110100000
32220112011122122002200
4130111103110012200
5444301032440210
621550432213200
72124614025300
oct342523240640
986464578080
1030422155680
11119a1571924
125a9039a200
132b3a993067
141688539600
15bd0c170c0
hex7154d41a0

30422155680 has 216 divisors, whose sum is σ = 120765373092. Its totient is φ = 6953619456.

The previous prime is 30422155669. The next prime is 30422155681. The reversal of 30422155680 is 8655122403.

30422155680 is a `hidden beast` number, since 3 + 0 + 4 + 2 + 21 + 556 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29739692304 + 682463376 = 172452^2 + 26124^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30422155681) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 145017 + ... + 286136.

Almost surely, 230422155680 is an apocalyptic number.

30422155680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30422155680 is an abundant number, since it is smaller than the sum of its proper divisors (90343217412).

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

30422155680 is a wasteful number, since it uses less digits than its factorization.

30422155680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431188 (or 431170 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 30422155680 in words is "thirty billion, four hundred twenty-two million, one hundred fifty-five thousand, six hundred eighty".