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54434981 = 198932191
BaseRepresentation
bin1100111110100…
…1110010100101
310210102120202102
43033221302211
5102413404411
65222421445
71230455366
oct317516245
9123376672
1054434981
11287aa897
1216291885
13b37bc63
14732db6d
154ba3d3b
hex33e9ca5

54434981 has 8 divisors (see below), whose sum is σ = 57945600. Its totient is φ = 50988960.

The previous prime is 54434971. The next prime is 54434987. The reversal of 54434981 is 18943445.

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 54434981 - 26 = 54434917 is a prime.

It is a super-2 number, since 2×544349812 = 5926334312940722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54434987) 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, 14405 + ... + 17786.

It is an arithmetic number, because the mean of its divisors is an integer number (7243200).

Almost surely, 254434981 is an apocalyptic number.

It is an amenable number.

54434981 is a deficient number, since it is larger than the sum of its proper divisors (3510619).

54434981 is a wasteful number, since it uses less digits than its factorization.

54434981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32299.

The product of its digits is 69120, while the sum is 38.

The square root of 54434981 is about 7378.0065735943. The cubic root of 54434981 is about 378.9884941149.

The spelling of 54434981 in words is "fifty-four million, four hundred thirty-four thousand, nine hundred eighty-one".

Divisors: 1 19 89 1691 32191 611629 2864999 54434981