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54642243 = 331587551
BaseRepresentation
bin1101000001110…
…0011001000011
310210211010001210
43100130121003
5102442022433
65231101203
71232310555
oct320343103
9123733053
1054642243
1128931587
1216371803
13b4223b6
1473854d5
154be5463
hex341c643

54642243 has 8 divisors (see below), whose sum is σ = 75206656. Its totient is φ = 35253000.

The previous prime is 54642193. The next prime is 54642251. The reversal of 54642243 is 34224645.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54642243 - 28 = 54641987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54642243.

It is not an unprimeable number, because it can be changed into a prime (54642253) 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 7 ways as a sum of consecutive naturals, for example, 293683 + ... + 293868.

It is an arithmetic number, because the mean of its divisors is an integer number (9400832).

Almost surely, 254642243 is an apocalyptic number.

54642243 is a deficient number, since it is larger than the sum of its proper divisors (20564413).

54642243 is a wasteful number, since it uses less digits than its factorization.

54642243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587585.

The product of its digits is 23040, while the sum is 30.

The square root of 54642243 is about 7392.0391638573. The cubic root of 54642243 is about 379.4688863728.

Adding to 54642243 its reverse (34224645), we get a palindrome (88866888).

The spelling of 54642243 in words is "fifty-four million, six hundred forty-two thousand, two hundred forty-three".

Divisors: 1 3 31 93 587551 1762653 18214081 54642243