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54203881 is a prime number
BaseRepresentation
bin1100111011000…
…1010111101001
310202222211202011
43032301113221
5102334011011
65213435521
71225503544
oct316612751
9122884664
1054203881
11286621a6
121619bba1
13b2caa04
1472ad85b
154b5a621
hex33b15e9

54203881 has 2 divisors, whose sum is σ = 54203882. Its totient is φ = 54203880.

The previous prime is 54203861. The next prime is 54203911. The reversal of 54203881 is 18830245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53890281 + 313600 = 7341^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 54203881 - 27 = 54203753 is a prime.

It is a super-2 number, since 2×542038812 = 5876121430924322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54203861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27101940 + 27101941.

It is an arithmetic number, because the mean of its divisors is an integer number (27101941).

Almost surely, 254203881 is an apocalyptic number.

It is an amenable number.

54203881 is a deficient number, since it is larger than the sum of its proper divisors (1).

54203881 is an equidigital number, since it uses as much as digits as its factorization.

54203881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 54203881 is about 7362.3285039449. The cubic root of 54203881 is about 378.4514100754.

The spelling of 54203881 in words is "fifty-four million, two hundred three thousand, eight hundred eighty-one".