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989294738 = 21493319781
BaseRepresentation
bin111010111101110…
…111000010010010
32112221112101020212
4322331313002102
54011224412423
6242100004122
733341603135
oct7275670222
92487471225
10989294738
11468481863
12237390642
13129c5c603
149556221c
155bcb9578
hex3af77092

989294738 has 8 divisors (see below), whose sum is σ = 1493901900. Its totient is φ = 491327440.

The previous prime is 989294737. The next prime is 989294741. The reversal of 989294738 is 837492989.

It can be written as a sum of positive squares in 2 ways, for example, as 985771609 + 3523129 = 31397^2 + 1877^2 .

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

It is not an unprimeable number, because it can be changed into a prime (989294737) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1659593 + ... + 1660188.

Almost surely, 2989294738 is an apocalyptic number.

989294738 is a deficient number, since it is larger than the sum of its proper divisors (504607162).

989294738 is a wasteful number, since it uses less digits than its factorization.

989294738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319932.

The product of its digits is 7838208, while the sum is 59.

The square root of 989294738 is about 31453.0560995271. The cubic root of 989294738 is about 996.4187694310.

The spelling of 989294738 in words is "nine hundred eighty-nine million, two hundred ninety-four thousand, seven hundred thirty-eight".

Divisors: 1 2 149 298 3319781 6639562 494647369 989294738