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54311242 = 227155621
BaseRepresentation
bin1100111100101…
…1100101001010
310210012022000111
43033023211022
5102400424432
65220024534
71226431546
oct317134512
9123168014
1054311242
1128725927
121623214a
13b33783b
1472daa26
154b7c347
hex33cb94a

54311242 has 4 divisors (see below), whose sum is σ = 81466866. Its totient is φ = 27155620.

The previous prime is 54311233. The next prime is 54311249. The reversal of 54311242 is 24211345.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38700841 + 15610401 = 6221^2 + 3951^2 .

It is a super-2 number, since 2×543112422 = 5899422015165128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54311249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13577809 + ... + 13577812.

Almost surely, 254311242 is an apocalyptic number.

54311242 is a deficient number, since it is larger than the sum of its proper divisors (27155624).

54311242 is a wasteful number, since it uses less digits than its factorization.

54311242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27155623.

The product of its digits is 960, while the sum is 22.

The square root of 54311242 is about 7369.6161365433. The cubic root of 54311242 is about 378.7011100651.

Adding to 54311242 its reverse (24211345), we get a palindrome (78522587).

The spelling of 54311242 in words is "fifty-four million, three hundred eleven thousand, two hundred forty-two".

Divisors: 1 2 27155621 54311242