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82473120 = 25335171123
BaseRepresentation
bin1001110101001…
…11000010100000
312202012001212000
410322213002200
5132103114440
612103404000
72021003262
oct472470240
9182161760
1082473120
1142610304
1223753600
1314117c82
14ad4bb32
157391730
hex4ea70a0

82473120 has 192 divisors, whose sum is σ = 305907840. Its totient is φ = 20680704.

The previous prime is 82473119. The next prime is 82473133. The reversal of 82473120 is 2137428.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72879 + ... + 74001.

It is an arithmetic number, because the mean of its divisors is an integer number (1593270).

Almost surely, 282473120 is an apocalyptic number.

82473120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82473120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152953920).

82473120 is an abundant number, since it is smaller than the sum of its proper divisors (223434720).

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

82473120 is a wasteful number, since it uses less digits than its factorization.

82473120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 82473120 is about 9081.4712464446. The cubic root of 82473120 is about 435.2821000134.

The spelling of 82473120 in words is "eighty-two million, four hundred seventy-three thousand, one hundred twenty".