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989770030 = 2598977003
BaseRepresentation
bin111010111111101…
…011000100101110
32112222102112020021
4322333223010232
54011340120110
6242114112354
733345622624
oct7277530456
92488375207
10989770030
11468776967
1223757b6ba
1312a097a52
1495647514
155bd602da
hex3afeb12e

989770030 has 8 divisors (see below), whose sum is σ = 1781586072. Its totient is φ = 395908008.

The previous prime is 989770027. The next prime is 989770049. The reversal of 989770030 is 30077989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49488492 + ... + 49488511.

It is an arithmetic number, because the mean of its divisors is an integer number (222698259).

Almost surely, 2989770030 is an apocalyptic number.

989770030 is a deficient number, since it is larger than the sum of its proper divisors (791816042).

989770030 is a wasteful number, since it uses less digits than its factorization.

989770030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98977010.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 989770030 is about 31460.6107696593. The cubic root of 989770030 is about 996.5783154283.

The spelling of 989770030 in words is "nine hundred eighty-nine million, seven hundred seventy thousand, thirty".

Divisors: 1 2 5 10 98977003 197954006 494885015 989770030