Search a number
-
+
82757281351 = 3137345715661
BaseRepresentation
bin100110100010010110…
…1111110011001000111
321220121111102110221111
41031010231332121013
52323441331000401
6102003531425451
75656542166513
oct1150455763107
9256544373844
1082757281351
11321083673a8
12140572b5287
137a5b455c44
14401103d143
1522455bae51
hex1344b7e647

82757281351 has 16 divisors (see below), whose sum is σ = 85848809728. Its totient is φ = 79693113600.

The previous prime is 82757281319. The next prime is 82757281379. The reversal of 82757281351 is 15318275728.

It is not a de Polignac number, because 82757281351 - 25 = 82757281319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82757281295 and 82757281304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82757281381) 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, 5276461 + ... + 5292121.

It is an arithmetic number, because the mean of its divisors is an integer number (5365550608).

Almost surely, 282757281351 is an apocalyptic number.

82757281351 is a deficient number, since it is larger than the sum of its proper divisors (3091528377).

82757281351 is a wasteful number, since it uses less digits than its factorization.

82757281351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16522.

The product of its digits is 940800, while the sum is 49.

The spelling of 82757281351 in words is "eighty-two billion, seven hundred fifty-seven million, two hundred eighty-one thousand, three hundred fifty-one".

Divisors: 1 31 373 457 11563 14167 15661 170461 485491 5284291 5841553 7157077 181088143 221869387 2669589721 82757281351