Search a number
-
+
989030 = 25771199
BaseRepresentation
bin11110001011101100110
31212020200202
43301131212
5223122110
633110502
711256320
oct3613546
91766622
10989030
11616089
123b8432
13288233
141ba610
151480a5
hexf1766

989030 has 32 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 332640.

The previous prime is 989029. The next prime is 989059. The reversal of 989030 is 30989.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 988984 and 989002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4871 + ... + 5069.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2989030 is an apocalyptic number.

It is a pronic number, being equal to 994×995.

989030 is an abundant number, since it is smaller than the sum of its proper divisors (1084570).

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

989030 is a wasteful number, since it uses less digits than its factorization.

989030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 989030 is about 994.4998743087. The cubic root of 989030 is about 99.6329880031.

The spelling of 989030 in words is "nine hundred eighty-nine thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 71 142 199 355 398 497 710 994 995 1393 1990 2485 2786 4970 6965 13930 14129 28258 70645 98903 141290 197806 494515 989030