Search a number
-
+
989088830 = 25115185933
BaseRepresentation
bin111010111101000…
…100110000111110
32112221010220210122
4322331010300332
54011201320310
6242051334542
733340054622
oct7275046076
92487126718
10989088830
11468351094
122372b1452
13129bb9982
149550b182
155bc78555
hex3af44c3e

989088830 has 16 divisors (see below), whose sum is σ = 1781927424. Its totient is φ = 395287200.

The previous prime is 989088791. The next prime is 989088901. The reversal of 989088830 is 38880989.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31457 + ... + 54476.

It is an arithmetic number, because the mean of its divisors is an integer number (111370464).

Almost surely, 2989088830 is an apocalyptic number.

989088830 is a deficient number, since it is larger than the sum of its proper divisors (792838594).

989088830 is a wasteful number, since it uses less digits than its factorization.

989088830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87091.

The product of its (nonzero) digits is 995328, while the sum is 53.

The square root of 989088830 is about 31449.7826701553. The cubic root of 989088830 is about 996.3496343781.

The spelling of 989088830 in words is "nine hundred eighty-nine million, eighty-eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 1151 2302 5755 11510 85933 171866 429665 859330 98908883 197817766 494544415 989088830