Search a number
-
+
486978987271 = 7243147034903
BaseRepresentation
bin1110001011000100011…
…01011010010100000111
31201112222101212201201211
413011202031122110013
530434313110043041
61011414241432251
750116536044200
oct7054215322407
91645871781654
10486978987271
11178587a40957
127a46833b687
1336bca5cca0a
14197d9b885a7
15ca02930481
hex716235a507

486978987271 has 24 divisors (see below), whose sum is σ = 568036675584. Its totient is φ = 416268624240.

The previous prime is 486978987239. The next prime is 486978987283. The reversal of 486978987271 is 172789879684.

It is not a de Polignac number, because 486978987271 - 25 = 486978987239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486978987371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99320206 + ... + 99325108.

It is an arithmetic number, because the mean of its divisors is an integer number (23668194816).

Almost surely, 2486978987271 is an apocalyptic number.

486978987271 is a deficient number, since it is larger than the sum of its proper divisors (81057688313).

486978987271 is a wasteful number, since it uses less digits than its factorization.

486978987271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051 (or 10044 counting only the distinct ones).

The product of its digits is 682795008, while the sum is 76.

The spelling of 486978987271 in words is "four hundred eighty-six billion, nine hundred seventy-eight million, nine hundred eighty-seven thousand, two hundred seventy-one".

Divisors: 1 7 49 431 3017 4703 4903 21119 32921 34321 230447 240247 2026993 2113193 14188951 14792351 23058809 99322657 103546457 161411663 1129881641 9938346679 69568426753 486978987271