Search a number
-
+
78229683 = 3271241741
BaseRepresentation
bin1001010100110…
…11000010110011
312110012110221200
410222123002303
5130011322213
611432422243
71636640610
oct452330263
9173173850
1078229683
1140182134
1222247983
131329066c
14a565507
156d04273
hex4a9b0b3

78229683 has 12 divisors (see below), whose sum is σ = 129141168. Its totient is φ = 44702640.

The previous prime is 78229673. The next prime is 78229687. The reversal of 78229683 is 38692287.

It is not a de Polignac number, because 78229683 - 29 = 78229171 is a prime.

It is a super-2 number, since 2×782296832 = 12239766604560978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78229687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620808 + ... + 620933.

It is an arithmetic number, because the mean of its divisors is an integer number (10761764).

Almost surely, 278229683 is an apocalyptic number.

78229683 is a deficient number, since it is larger than the sum of its proper divisors (50911485).

78229683 is a wasteful number, since it uses less digits than its factorization.

78229683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241754 (or 1241751 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 78229683 is about 8844.7545471878. The cubic root of 78229683 is about 427.6848405563.

The spelling of 78229683 in words is "seventy-eight million, two hundred twenty-nine thousand, six hundred eighty-three".

Divisors: 1 3 7 9 21 63 1241741 3725223 8692187 11175669 26076561 78229683