Search a number
-
+
30156572160 = 293651113113
BaseRepresentation
bin11100000101011110…
…001100011000000000
32212211122220121000000
4130011132030120000
5443230040302120
621504224000000
72115210430311
oct340536143000
985748817000
1030156572160
1111875665010
125a17460000
132ac7955550
141661164608
15bb7755990
hex70578c600

30156572160 has 1120 divisors, whose sum is σ = 128487588768. Its totient is φ = 6688604160.

The previous prime is 30156572141. The next prime is 30156572177. The reversal of 30156572160 is 6127565103.

30156572160 is a `hidden beast` number, since 30 + 1 + 56 + 572 + 1 + 6 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 266872264 + ... + 266872376.

Almost surely, 230156572160 is an apocalyptic number.

30156572160 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 30156572160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64243794384).

30156572160 is an abundant number, since it is smaller than the sum of its proper divisors (98331016608).

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

30156572160 is a wasteful number, since it uses less digits than its factorization.

30156572160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 30156572160 in words is "thirty billion, one hundred fifty-six million, five hundred seventy-two thousand, one hundred sixty".