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54404431 = 591317039
BaseRepresentation
bin1100111110001…
…0010101001111
310210101000211221
43033202111033
5102411420211
65222024211
71230300334
oct317422517
9123330757
1054404431
1128789944
1216278067
13b36b093
14732298b
154b99c71
hex33e254f

54404431 has 8 divisors (see below), whose sum is σ = 55756800. Its totient is φ = 53066520.

The previous prime is 54404401. The next prime is 54404459. The reversal of 54404431 is 13440445.

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 54404431 - 27 = 54404303 is a prime.

It is a super-2 number, since 2×544044312 = 5919684224867522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54404396 and 54404405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54404401) 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, 4210 + ... + 11248.

It is an arithmetic number, because the mean of its divisors is an integer number (6969600).

Almost surely, 254404431 is an apocalyptic number.

54404431 is a deficient number, since it is larger than the sum of its proper divisors (1352369).

54404431 is a wasteful number, since it uses less digits than its factorization.

54404431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7229.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 54404431 is about 7375.9359406112. The cubic root of 54404431 is about 378.9175822067.

Adding to 54404431 its reverse (13440445), we get a palindrome (67844876).

The spelling of 54404431 in words is "fifty-four million, four hundred four thousand, four hundred thirty-one".

Divisors: 1 59 131 7039 7729 415301 922109 54404431