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82695228 = 223711312887
BaseRepresentation
bin1001110110111…
…01010000111100
312202121100112020
410323131100330
5132132221403
612112240140
72022616650
oct473352074
9182540466
1082695228
1142752170
1223840050
13141950b5
14ada8a60
1573d7453
hex4edd43c

82695228 has 96 divisors (see below), whose sum is σ = 248414208. Its totient is φ = 20779200.

The previous prime is 82695187. The next prime is 82695233. The reversal of 82695228 is 82259628.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 82695228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27201 + ... + 30087.

It is an arithmetic number, because the mean of its divisors is an integer number (2587648).

Almost surely, 282695228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82695228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124207104).

82695228 is an abundant number, since it is smaller than the sum of its proper divisors (165718980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82695228 is a wasteful number, since it uses less digits than its factorization.

82695228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943 (or 2941 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 82695228 is about 9093.6916596067. The cubic root of 82695228 is about 435.6725018684.

Subtracting from 82695228 its reverse (82259628), we obtain a square (435600 = 6602).

The spelling of 82695228 in words is "eighty-two million, six hundred ninety-five thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 31 33 42 44 62 66 77 84 93 124 132 154 186 217 231 308 341 372 434 462 651 682 868 924 1023 1302 1364 2046 2387 2604 2887 4092 4774 5774 7161 8661 9548 11548 14322 17322 20209 28644 31757 34644 40418 60627 63514 80836 89497 95271 121254 127028 178994 190542 222299 242508 268491 357988 381084 444598 536982 626479 666897 889196 984467 1073964 1252958 1333794 1879437 1968934 2505916 2667588 2953401 3758874 3937868 5906802 6891269 7517748 11813604 13782538 20673807 27565076 41347614 82695228