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54789423 = 3137917783
BaseRepresentation
bin1101000100000…
…0010100101111
310211002120221220
43101000110233
5103011230143
65234154423
71233462633
oct321002457
9124076856
1054789423
1128a22117
1216422a13
13b4743a0
1473c2dc3
154c23d83
hex344052f

54789423 has 16 divisors (see below), whose sum is σ = 79672320. Its totient is φ = 33287904.

The previous prime is 54789421. The next prime is 54789433. The reversal of 54789423 is 32498745.

It is not a de Polignac number, because 54789423 - 21 = 54789421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54789421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5811 + ... + 11972.

It is an arithmetic number, because the mean of its divisors is an integer number (4979520).

Almost surely, 254789423 is an apocalyptic number.

54789423 is a deficient number, since it is larger than the sum of its proper divisors (24882897).

54789423 is a wasteful number, since it uses less digits than its factorization.

54789423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17878.

The product of its digits is 241920, while the sum is 42.

The square root of 54789423 is about 7401.9877735646. The cubic root of 54789423 is about 379.8092833377.

The spelling of 54789423 in words is "fifty-four million, seven hundred eighty-nine thousand, four hundred twenty-three".

Divisors: 1 3 13 39 79 237 1027 3081 17783 53349 231179 693537 1404857 4214571 18263141 54789423