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82337240 = 23523312887
BaseRepresentation
bin1001110100001…
…01110111011000
312201221011110102
410322011313120
5132034242430
612100434532
72016566156
oct472056730
9181834412
1082337240
1142528207
12236a8a48
131409b17b
14ad143d6
157366345
hex4e85dd8

82337240 has 64 divisors (see below), whose sum is σ = 199618560. Its totient is φ = 30476160.

The previous prime is 82337221. The next prime is 82337261. The reversal of 82337240 is 4273328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27077 + ... + 29963.

It is an arithmetic number, because the mean of its divisors is an integer number (3119040).

Almost surely, 282337240 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 82337240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99809280).

82337240 is an abundant number, since it is smaller than the sum of its proper divisors (117281320).

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

82337240 is a wasteful number, since it uses less digits than its factorization.

82337240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952 (or 2948 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 82337240 is about 9073.9869958029. The cubic root of 82337240 is about 435.0429164510.

The spelling of 82337240 in words is "eighty-two million, three hundred thirty-seven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 23 31 40 46 62 92 115 124 155 184 230 248 310 460 620 713 920 1240 1426 2852 2887 3565 5704 5774 7130 11548 14260 14435 23096 28520 28870 57740 66401 89497 115480 132802 178994 265604 332005 357988 447485 531208 664010 715976 894970 1328020 1789940 2058431 2656040 3579880 4116862 8233724 10292155 16467448 20584310 41168620 82337240