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82472148 = 22331126311
BaseRepresentation
bin1001110101001…
…10110011010100
312202012000112000
410322212303110
5132103102043
612103355300
72021000403
oct472466324
9182160460
1082472148
114260a600
1223752b30
13141176b5
14ad4b63a
1573912d3
hex4ea6cd4

82472148 has 72 divisors (see below), whose sum is σ = 235058880. Its totient is φ = 24987600.

The previous prime is 82472119. The next prime is 82472153. The reversal of 82472148 is 84127428.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9913 + ... + 16223.

Almost surely, 282472148 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 82472148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117529440).

82472148 is an abundant number, since it is smaller than the sum of its proper divisors (152586732).

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

82472148 is a wasteful number, since it uses less digits than its factorization.

82472148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6346 (or 6327 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 82472148 is about 9081.4177307291. The cubic root of 82472148 is about 435.2803899780.

The spelling of 82472148 in words is "eighty-two million, four hundred seventy-two thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 121 132 198 242 297 363 396 484 594 726 1089 1188 1452 2178 3267 4356 6311 6534 12622 13068 18933 25244 37866 56799 69421 75732 113598 138842 170397 208263 227196 277684 340794 416526 624789 681588 763631 833052 1249578 1527262 1874367 2290893 2499156 3054524 3748734 4581786 6872679 7497468 9163572 13745358 20618037 27490716 41236074 82472148