Search a number
-
+
485739969 = 311132251347
BaseRepresentation
bin11100111100111…
…100110111000001
31020212000010222020
4130330330313001
51443322134334
6120111032053
715015502341
oct3474746701
91225003866
10485739969
1122a2076a0
1211680b629
1379831500
1448722d21
152c99ce49
hex1cf3cdc1

485739969 has 48 divisors (see below), whose sum is σ = 770321664. Its totient is φ = 269880000.

The previous prime is 485739923. The next prime is 485739973. The reversal of 485739969 is 969937584.

It is not a de Polignac number, because 485739969 - 225 = 452185537 is a prime.

It is a super-2 number, since 2×4857399692 = 471886634968241922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (485739469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1399654 + ... + 1400000.

It is an arithmetic number, because the mean of its divisors is an integer number (16048368).

Almost surely, 2485739969 is an apocalyptic number.

It is an amenable number.

485739969 is a deficient number, since it is larger than the sum of its proper divisors (284581695).

485739969 is a wasteful number, since it uses less digits than its factorization.

485739969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 625 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 60.

The square root of 485739969 is about 22039.5092731213. The cubic root of 485739969 is about 786.0821722584.

The spelling of 485739969 in words is "four hundred eighty-five million, seven hundred thirty-nine thousand, nine hundred sixty-nine".

Divisors: 1 3 11 13 33 39 143 169 251 347 429 507 753 1041 1859 2761 3263 3817 4511 5577 8283 9789 11451 13533 35893 42419 49621 58643 87097 107679 127257 148863 175929 261291 466609 645073 958067 1132261 1399827 1935219 2874201 3396783 12454871 14719393 37364613 44158179 161913323 485739969