Search a number
-
+
82918976 = 2672137193
BaseRepresentation
bin1001111000100…
…11111001000000
312210000201110012
410330103321000
5132211401401
612121124052
72024541200
oct474237100
9183021405
1082918976
1142895288
1223929628
1314242baa
14b026400
15742d8bb
hex4f13e40

82918976 has 84 divisors (see below), whose sum is σ = 193802508. Its totient is φ = 35094528.

The previous prime is 82918949. The next prime is 82918987. The reversal of 82918976 is 67981928.

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 49000000 = 5824^2 + 7000^2 .

It is a super-3 number, since 3×829189763 (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429536 + ... + 429728.

Almost surely, 282918976 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 82918976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96901254).

82918976 is an abundant number, since it is smaller than the sum of its proper divisors (110883532).

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

82918976 is a wasteful number, since it uses less digits than its factorization.

82918976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 339 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

The square root of 82918976 is about 9105.9857236875. The cubic root of 82918976 is about 436.0650802047.

The spelling of 82918976 in words is "eighty-two million, nine hundred eighteen thousand, nine hundred seventy-six".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 137 193 196 224 274 386 392 448 548 772 784 959 1096 1351 1544 1568 1918 2192 2702 3088 3136 3836 4384 5404 6176 6713 7672 8768 9457 10808 12352 13426 15344 18914 21616 26441 26852 30688 37828 43232 52882 53704 61376 75656 86464 105764 107408 151312 185087 211528 214816 302624 370174 423056 429632 605248 740348 846112 1295609 1480696 1692224 2591218 2961392 5182436 5922784 10364872 11845568 20729744 41459488 82918976