Search a number
-
+
42283131 = 311172329113
BaseRepresentation
bin1010000101001…
…1000001111011
32221120012112220
42201103001323
541311030011
64110135123
71022254302
oct241230173
987505486
1042283131
112195aa40
12121b14a3
1389b5b07
145889439
153aa3506
hex285307b

42283131 has 64 divisors (see below), whose sum is σ = 70917120. Its totient is φ = 22077440.

The previous prime is 42283093. The next prime is 42283141. The reversal of 42283131 is 13138224.

It is not a de Polignac number, because 42283131 - 215 = 42250363 is a prime.

It is a super-2 number, since 2×422831312 = 3575726334326322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42283141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 374131 + ... + 374243.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 242283131 is an apocalyptic number.

42283131 is a deficient number, since it is larger than the sum of its proper divisors (28633989).

42283131 is a wasteful number, since it uses less digits than its factorization.

42283131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196.

The product of its digits is 1152, while the sum is 24.

The square root of 42283131 is about 6502.5480390382. The cubic root of 42283131 is about 348.3820038878.

The spelling of 42283131 in words is "forty-two million, two hundred eighty-three thousand, one hundred thirty-one".

Divisors: 1 3 11 17 23 29 33 51 69 87 113 187 253 319 339 391 493 561 667 759 957 1173 1243 1479 1921 2001 2599 3277 3729 4301 5423 5763 7337 7797 9831 11339 12903 16269 21131 22011 28589 34017 36047 44183 55709 63393 75371 85767 108141 124729 132549 167127 226113 374187 486013 612799 829081 1281307 1458039 1838397 2487243 3843921 14094377 42283131