Search a number
-
+
80906896 = 2471395197
BaseRepresentation
bin1001101001010…
…00101010010000
312122020111101201
410310220222100
5131203010041
612010040544
72001461110
oct464505220
9178214351
1080906896
1141740604
1223119154
13139ba105
14aa61040
157182631
hex4d28a90

80906896 has 40 divisors (see below), whose sum is σ = 180474560. Its totient is φ = 34418304.

The previous prime is 80906887. The next prime is 80906909. The reversal of 80906896 is 69860908.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12970 + ... + 18166.

It is an arithmetic number, because the mean of its divisors is an integer number (4511864).

Almost surely, 280906896 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 80906896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90237280).

80906896 is an abundant number, since it is smaller than the sum of its proper divisors (99567664).

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

80906896 is a wasteful number, since it uses less digits than its factorization.

80906896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351 (or 5345 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 80906896 is about 8994.8260683573. The cubic root of 80906896 is about 432.5090307402.

The spelling of 80906896 in words is "eighty million, nine hundred six thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 56 112 139 278 556 973 1112 1946 2224 3892 5197 7784 10394 15568 20788 36379 41576 72758 83152 145516 291032 582064 722383 1444766 2889532 5056681 5779064 10113362 11558128 20226724 40453448 80906896