Search a number
-
+
494469143 = 74415023
BaseRepresentation
bin11101011110010…
…000000000010111
31021110102122010222
4131132100000113
52003041003033
6121022104555
715152630000
oct3536200027
91243378128
10494469143
11234129a93
1211971b15b
137b5997bc
14499561a7
152d624598
hex1d790017

494469143 has 20 divisors (see below), whose sum is σ = 591033408. Its totient is φ = 413411040.

The previous prime is 494469049. The next prime is 494469197. The reversal of 494469143 is 341964494.

It is not a de Polignac number, because 494469143 - 212 = 494465047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 494469094 and 494469103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494463143) 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 19 ways as a sum of consecutive naturals, for example, 95930 + ... + 100952.

Almost surely, 2494469143 is an apocalyptic number.

494469143 is a deficient number, since it is larger than the sum of its proper divisors (96564265).

494469143 is an frugal number, since it uses more digits than its factorization.

494469143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092 (or 5071 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 494469143 is about 22236.6621371104. The cubic root of 494469143 is about 790.7631055031.

The spelling of 494469143 in words is "four hundred ninety-four million, four hundred sixty-nine thousand, one hundred forty-three".

Divisors: 1 7 41 49 287 343 2009 2401 5023 14063 35161 98441 205943 246127 1441601 1722889 10091207 12060223 70638449 494469143