Search a number
-
+
905668608 = 211313172329
BaseRepresentation
bin110101111110110…
…110100000000000
32100010011201202210
4311332312200000
53323322343413
6225511342120
731305025155
oct6576664000
92303151683
10905668608
11425254259
12213381940
1311582c8b0
14883d422c
155479b3c3
hex35fb6800

905668608 has 384 divisors, whose sum is σ = 2971987200. Its totient is φ = 242221056.

The previous prime is 905668583. The next prime is 905668619. The reversal of 905668608 is 806866509.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31229938 + ... + 31229966.

It is an arithmetic number, because the mean of its divisors is an integer number (7739550).

Almost surely, 2905668608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 905668608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1485993600).

905668608 is an abundant number, since it is smaller than the sum of its proper divisors (2066318592).

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

905668608 is a wasteful number, since it uses less digits than its factorization.

905668608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 905668608 is about 30094.3285022278. The cubic root of 905668608 is about 967.5121736612.

The spelling of 905668608 in words is "nine hundred five million, six hundred sixty-eight thousand, six hundred eight".