Search a number
-
+
67094890 = 25191811951
BaseRepresentation
bin1111111111110…
…0100101101010
311200020202212221
43333330211222
5114134014030
610354024254
71443203632
oct377744552
9150222787
1067094890
1134967425
121a57808a
1310b92425
148ca76c2
155d54e7a
hex3ffc96a

67094890 has 32 divisors (see below), whose sum is σ = 127895040. Its totient is φ = 25272000.

The previous prime is 67094837. The next prime is 67094891. The reversal of 67094890 is 9849076.

It is a super-2 number, since 2×670948902 = 9003448528224200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (67094891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33415 + ... + 35365.

It is an arithmetic number, because the mean of its divisors is an integer number (3996720).

Almost surely, 267094890 is an apocalyptic number.

67094890 is a deficient number, since it is larger than the sum of its proper divisors (60800150).

67094890 is a wasteful number, since it uses less digits than its factorization.

67094890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 67094890 is about 8191.1470503221. The cubic root of 67094890 is about 406.3464610390.

The spelling of 67094890 in words is "sixty-seven million, ninety-four thousand, eight hundred ninety".

Divisors: 1 2 5 10 19 38 95 181 190 362 905 1810 1951 3439 3902 6878 9755 17195 19510 34390 37069 74138 185345 353131 370690 706262 1765655 3531310 6709489 13418978 33547445 67094890