Search a number
-
+
30869562240 = 2733511232307
BaseRepresentation
bin11100101111111110…
…000010001110000000
32221200100112020112000
4130233332002032000
51001210101442430
622103053504000
72141655643506
oct345776021600
987610466460
1030869562240
1112101077010
125b961a2000
132bac59247a
1416cbb20676
15c0a141e60
hex72ff82380

30869562240 has 768 divisors, whose sum is σ = 125085945600. Its totient is φ = 7134842880.

The previous prime is 30869562233. The next prime is 30869562281. The reversal of 30869562240 is 4226596803.

30869562240 is a `hidden beast` number, since 3 + 0 + 8 + 69 + 562 + 24 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 100552167 + ... + 100552473.

It is an arithmetic number, because the mean of its divisors is an integer number (162872325).

Almost surely, 230869562240 is an apocalyptic number.

30869562240 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 30869562240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62542972800).

30869562240 is an abundant number, since it is smaller than the sum of its proper divisors (94216383360).

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

30869562240 is a wasteful number, since it uses less digits than its factorization.

30869562240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 30869562240 in words is "thirty billion, eight hundred sixty-nine million, five hundred sixty-two thousand, two hundred forty".