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54046321 = 77720903
BaseRepresentation
bin1100111000101…
…0111001110001
310202200211121121
43032022321301
5102313440241
65210222241
71224246310
oct316127161
9122624547
1054046321
112856488a
1216124981
13b274094
14726c277
154b28ad1
hex338ae71

54046321 has 4 divisors (see below), whose sum is σ = 61767232. Its totient is φ = 46325412.

The previous prime is 54046309. The next prime is 54046327. The reversal of 54046321 is 12364045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12364045 = 52472809.

It is not a de Polignac number, because 54046321 - 29 = 54045809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54046327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3860445 + ... + 3860458.

It is an arithmetic number, because the mean of its divisors is an integer number (15441808).

Almost surely, 254046321 is an apocalyptic number.

It is an amenable number.

54046321 is a deficient number, since it is larger than the sum of its proper divisors (7720911).

54046321 is an equidigital number, since it uses as much as digits as its factorization.

54046321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7720910.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 54046321 is about 7351.6202975943. The cubic root of 54046321 is about 378.0843596419.

The spelling of 54046321 in words is "fifty-four million, forty-six thousand, three hundred twenty-one".

Divisors: 1 7 7720903 54046321