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981422 = 21337747
BaseRepresentation
bin11101111100110101110
31211212020222
43233212232
5222401142
633011342
711225201
oct3574656
91755228
10981422
116103a2
123b3b52
13284930
141b7938
15145bd2
hexef9ae

981422 has 8 divisors (see below), whose sum is σ = 1585416. Its totient is φ = 452952.

The previous prime is 981419. The next prime is 981437. The reversal of 981422 is 224189.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 37747 = 981422 / (9 + 8 + 1 + 4 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 981391 and 981400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18848 + ... + 18899.

It is an arithmetic number, because the mean of its divisors is an integer number (198177).

2981422 is an apocalyptic number.

981422 is a deficient number, since it is larger than the sum of its proper divisors (603994).

981422 is a wasteful number, since it uses less digits than its factorization.

981422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37762.

The product of its digits is 1152, while the sum is 26.

The square root of 981422 is about 990.6674517718. The cubic root of 981422 is about 99.3768583437.

The spelling of 981422 in words is "nine hundred eighty-one thousand, four hundred twenty-two".

Divisors: 1 2 13 26 37747 75494 490711 981422