Base | Representation |
---|---|
bin | 111010111100111… |
… | …100000001100111 |
3 | 2112221002002200202 |
4 | 322330330001213 |
5 | 4011144144111 |
6 | 242050501115 |
7 | 33336545351 |
oct | 7274740147 |
9 | 2487062622 |
10 | 989053031 |
11 | 4683271aa |
12 | 23729479b |
13 | 129ba65a5 |
14 | 954dc0d1 |
15 | 5bc6cb3b |
hex | 3af3c067 |
989053031 has 8 divisors (see below), whose sum is σ = 1026259920. Its totient is φ = 952397568.
The previous prime is 989053027. The next prime is 989053069. The reversal of 989053031 is 130350989.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 989053031 - 22 = 989053027 is a prime.
It is a super-2 number, since 2×9890530312 = 1956451796260573922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (989053001) 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 7 ways as a sum of consecutive naturals, for example, 134201 + ... + 141378.
It is an arithmetic number, because the mean of its divisors is an integer number (128282490).
Almost surely, 2989053031 is an apocalyptic number.
989053031 is a deficient number, since it is larger than the sum of its proper divisors (37206889).
989053031 is a wasteful number, since it uses less digits than its factorization.
989053031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 275713.
The product of its (nonzero) digits is 29160, while the sum is 38.
The square root of 989053031 is about 31449.2135195779. The cubic root of 989053031 is about 996.3376136341.
The spelling of 989053031 in words is "nine hundred eighty-nine million, fifty-three thousand, thirty-one".
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