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54210031 is a prime number
BaseRepresentation
bin1100111011001…
…0110111101111
310210000011011221
43032302313233
5102334210111
65213524211
71225530511
oct316626757
9123004157
1054210031
1128666887
12161a3667
13b300755
1472b1bb1
154b5c371
hex33b2def

54210031 has 2 divisors, whose sum is σ = 54210032. Its totient is φ = 54210030.

The previous prime is 54210017. The next prime is 54210047. The reversal of 54210031 is 13001245.

It is an a-pointer prime, because the next prime (54210047) can be obtained adding 54210031 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54210031 - 213 = 54201839 is a prime.

It is a super-2 number, since 2×542100312 = 5877454922041922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54209987 and 54210014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54210061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27105015 + 27105016.

It is an arithmetic number, because the mean of its divisors is an integer number (27105016).

Almost surely, 254210031 is an apocalyptic number.

54210031 is a deficient number, since it is larger than the sum of its proper divisors (1).

54210031 is an equidigital number, since it uses as much as digits as its factorization.

54210031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 54210031 is about 7362.7461588731. The cubic root of 54210031 is about 378.4657226308.

Adding to 54210031 its reverse (13001245), we get a palindrome (67211276).

The spelling of 54210031 in words is "fifty-four million, two hundred ten thousand, thirty-one".