Base | Representation |
---|---|
bin | 111011001110… |
… | …1110001110001 |
3 | 2011102202101202 |
4 | 1312131301301 |
5 | 30422224321 |
6 | 3025340545 |
7 | 524651150 |
oct | 166356161 |
9 | 64382352 |
10 | 31054961 |
11 | 16591063 |
12 | a497755 |
13 | 6584222 |
14 | 41a5597 |
15 | 2ad670b |
hex | 1d9dc71 |
31054961 has 8 divisors (see below), whose sum is σ = 35581440. Its totient is φ = 26551008.
The previous prime is 31054957. The next prime is 31054981. The reversal of 31054961 is 16945013.
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 31054961 - 22 = 31054957 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (31054981) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561 + ... + 8286.
It is an arithmetic number, because the mean of its divisors is an integer number (4447680).
Almost surely, 231054961 is an apocalyptic number.
It is an amenable number.
31054961 is a deficient number, since it is larger than the sum of its proper divisors (4526479).
31054961 is a wasteful number, since it uses less digits than its factorization.
31054961 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11263.
The product of its (nonzero) digits is 3240, while the sum is 29.
The square root of 31054961 is about 5572.6978206251. The cubic root of 31054961 is about 314.3236044735.
Adding to 31054961 its reverse (16945013), we get a palindrome (47999974).
The spelling of 31054961 in words is "thirty-one million, fifty-four thousand, nine hundred sixty-one".
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