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985083121 = 1189553011
BaseRepresentation
bin111010101101110…
…010110011110001
32112122121102000001
4322231302303301
54004140124441
6241425430001
733261032311
oct7255626361
92478542001
10985083121
11466065590
12235a9b301
13129116629
1494b87441
155b736731
hex3ab72cf1

985083121 has 4 divisors (see below), whose sum is σ = 1074636144. Its totient is φ = 895530100.

The previous prime is 985083119. The next prime is 985083133. The reversal of 985083121 is 121380589.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121380589 = 1111034599.

It is a cyclic number.

It is not a de Polignac number, because 985083121 - 21 = 985083119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985083191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44776495 + ... + 44776516.

It is an arithmetic number, because the mean of its divisors is an integer number (268659036).

Almost surely, 2985083121 is an apocalyptic number.

It is an amenable number.

985083121 is a deficient number, since it is larger than the sum of its proper divisors (89553023).

985083121 is a wasteful number, since it uses less digits than its factorization.

985083121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89553022.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 985083121 is about 31386.0338526549. The cubic root of 985083121 is about 995.0027763531.

The spelling of 985083121 in words is "nine hundred eighty-five million, eighty-three thousand, one hundred twenty-one".

Divisors: 1 11 89553011 985083121