Base | Representation |
---|---|
bin | 111010000100100… |
… | …011011001010001 |
3 | 2111220021011001011 |
4 | 322010203121101 |
5 | 3443403201311 |
6 | 240402010521 |
7 | 33100114246 |
oct | 7204433121 |
9 | 2456234034 |
10 | 974272081 |
11 | 45aa51042 |
12 | 232346a41 |
13 | 126acc873 |
14 | 935715cd |
15 | 5a7ed321 |
hex | 3a123651 |
974272081 has 8 divisors (see below), whose sum is σ = 1009264680. Its totient is φ = 939372672.
The previous prime is 974272069. The next prime is 974272087. The reversal of 974272081 is 180272479.
It can be written as a sum of positive squares in 4 ways, for example, as 494662081 + 479610000 = 22241^2 + 21900^2 .
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 974272081 - 217 = 974141009 is a prime.
It is a super-2 number, since 2×9742720812 = 1898412175632141122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (974272087) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660 + ... + 44173.
It is an arithmetic number, because the mean of its divisors is an integer number (126158085).
Almost surely, 2974272081 is an apocalyptic number.
It is an amenable number.
974272081 is a deficient number, since it is larger than the sum of its proper divisors (34992599).
974272081 is a wasteful number, since it uses less digits than its factorization.
974272081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46595.
The product of its (nonzero) digits is 56448, while the sum is 40.
The square root of 974272081 is about 31213.3317830699. The cubic root of 974272081 is about 991.3494100763.
The spelling of 974272081 in words is "nine hundred seventy-four million, two hundred seventy-two thousand, eighty-one".
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