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52254742 = 261942209
BaseRepresentation
bin1100011101010…
…1100000010110
310122022211000211
43013111200112
5101334122432
65104000034
71203105121
oct307254026
9118284024
1052254742
1127550841
121560001a
13aa97787
146d233b8
1548c2d47
hex31d5816

52254742 has 8 divisors (see below), whose sum is σ = 78510600. Its totient is φ = 26084544.

The previous prime is 52254733. The next prime is 52254743. The reversal of 52254742 is 24745225.

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

It is a super-5 number, since 5×522547425 (a number of 40 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52254743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19867 + ... + 22342.

It is an arithmetic number, because the mean of its divisors is an integer number (9813825).

Almost surely, 252254742 is an apocalyptic number.

52254742 is a deficient number, since it is larger than the sum of its proper divisors (26255858).

52254742 is a wasteful number, since it uses less digits than its factorization.

52254742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42830.

The product of its digits is 22400, while the sum is 31.

The square root of 52254742 is about 7228.7441509573. The cubic root of 52254742 is about 373.8596278001.

Adding to 52254742 its reverse (24745225), we get a palindrome (76999967).

The spelling of 52254742 in words is "fifty-two million, two hundred fifty-four thousand, seven hundred forty-two".

Divisors: 1 2 619 1238 42209 84418 26127371 52254742