Search a number
-
+
58742281 = 1319212517
BaseRepresentation
bin1110000000010…
…1011000001001
311002112102021001
43200011120021
5110014223111
65455015001
71312205203
oct340053011
9132472231
1058742281
1130181a44
121780a461
13c229660
147b31773
1552551c1
hex3805609

58742281 has 12 divisors (see below), whose sum is σ = 66771012. Its totient is φ = 51365664.

The previous prime is 58742279. The next prime is 58742287. The reversal of 58742281 is 18224785.

It can be written as a sum of positive squares in 2 ways, for example, as 33582025 + 25160256 = 5795^2 + 5016^2 .

It is not a de Polignac number, because 58742281 - 21 = 58742279 is a prime.

It is a super-2 number, since 2×587422812 = 6901311154165922, which contains 22 as substring.

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 58742281.

It is not an unprimeable number, because it can be changed into a prime (58742287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1566 + ... + 10951.

It is an arithmetic number, because the mean of its divisors is an integer number (5564251).

Almost surely, 258742281 is an apocalyptic number.

It is an amenable number.

58742281 is a deficient number, since it is larger than the sum of its proper divisors (8028731).

58742281 is a wasteful number, since it uses less digits than its factorization.

58742281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12568 (or 12549 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 58742281 is about 7664.3513097978. The cubic root of 58742281 is about 388.7319785693.

The spelling of 58742281 in words is "fifty-eight million, seven hundred forty-two thousand, two hundred eighty-one".

Divisors: 1 13 19 247 361 4693 12517 162721 237823 3091699 4518637 58742281