Search a number
-
+
1608412680 = 233357316863
BaseRepresentation
bin101111111011110…
…0110111000001000
311011002111211102000
41133313212320020
511243223201210
6423333511000
754600165540
oct13767467010
94132454360
101608412680
117559a8286
1238a7a2460
131c82bcca4
14113884320
1596311ac0
hex5fde6e08

1608412680 has 256 divisors, whose sum is σ = 6325862400. Its totient is φ = 355726080.

The previous prime is 1608412679. The next prime is 1608412691. The reversal of 1608412680 is 862148061.

1608412680 is a `hidden beast` number, since 1 + 608 + 41 + 2 + 6 + 8 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 230929 + ... + 237791.

It is an arithmetic number, because the mean of its divisors is an integer number (24710400).

Almost surely, 21608412680 is an apocalyptic number.

1608412680 is a gapful number since it is divisible by the number (10) 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 1608412680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3162931200).

1608412680 is an abundant number, since it is smaller than the sum of its proper divisors (4717449720).

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

1608412680 is a wasteful number, since it uses less digits than its factorization.

1608412680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6921 (or 6911 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1608412680 is about 40105.0206333322. The cubic root of 1608412680 is about 1171.6534151281.

The spelling of 1608412680 in words is "one billion, six hundred eight million, four hundred twelve thousand, six hundred eighty".