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989426 = 2494713
BaseRepresentation
bin11110001100011110010
31212021020102
43301203302
5223130201
633112402
711260424
oct3614362
91767212
10989426
11616409
123b8702
13288479
141ba814
1514826b
hexf18f2

989426 has 4 divisors (see below), whose sum is σ = 1484142. Its totient is φ = 494712.

The previous prime is 989423. The next prime is 989441. The reversal of 989426 is 624989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624989 = 1514139.

It can be written as a sum of positive squares in only one way, i.e., 724201 + 265225 = 851^2 + 515^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 989426.

It is not an unprimeable number, because it can be changed into a prime (989423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247355 + ... + 247358.

2989426 is an apocalyptic number.

989426 is a deficient number, since it is larger than the sum of its proper divisors (494716).

989426 is a wasteful number, since it uses less digits than its factorization.

989426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494715.

The product of its digits is 31104, while the sum is 38.

The square root of 989426 is about 994.6989494314. The cubic root of 989426 is about 99.6462836560.

The spelling of 989426 in words is "nine hundred eighty-nine thousand, four hundred twenty-six".

Divisors: 1 2 494713 989426