Search a number
-
+
8988081 = 32996027
BaseRepresentation
bin100010010010…
…010110110001
3121220122022220
4202102112301
54300104311
6520351253
7136253214
oct42222661
917818286
108988081
115089973
123015529
131b290bb
14129d77b
15bc8206
hex8925b1

8988081 has 4 divisors (see below), whose sum is σ = 11984112. Its totient is φ = 5992052.

The previous prime is 8988079. The next prime is 8988113. The reversal of 8988081 is 1808898.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8988081 - 21 = 8988079 is a prime.

It is a super-2 number, since 2×89880812 = 161571200125122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8988281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498011 + ... + 1498016.

It is an arithmetic number, because the mean of its divisors is an integer number (2996028).

Almost surely, 28988081 is an apocalyptic number.

It is an amenable number.

8988081 is a deficient number, since it is larger than the sum of its proper divisors (2996031).

8988081 is a wasteful number, since it uses less digits than its factorization.

8988081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996030.

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 8988081 is about 2998.0128418671. The cubic root of 8988081 is about 207.9165175953.

The spelling of 8988081 in words is "eight million, nine hundred eighty-eight thousand, eighty-one".

Divisors: 1 3 2996027 8988081