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82127332 = 22722231879
BaseRepresentation
bin1001110010100…
…10100111100100
312201112111112001
410321102213210
5132011033312
612052135044
72015033200
oct471224744
9181474461
1082127332
11423a4531
1223607484
1314026771
14ac9bb00
157324057
hex4e529e4

82127332 has 36 divisors (see below), whose sum is σ = 168026880. Its totient is φ = 35020944.

The previous prime is 82127293. The next prime is 82127341. The reversal of 82127332 is 23372128.

It is a super-2 number, since 2×821273322 = 13489797322876448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 82127332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42769 + ... + 44647.

Almost surely, 282127332 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 82127332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84013440).

82127332 is an abundant number, since it is smaller than the sum of its proper divisors (85899548).

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

82127332 is a wasteful number, since it uses less digits than its factorization.

82127332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120 (or 2111 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 82127332 is about 9062.4131444114. The cubic root of 82127332 is about 434.6729068801.

The spelling of 82127332 in words is "eighty-two million, one hundred twenty-seven thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 98 196 223 446 892 1561 1879 3122 3758 6244 7516 10927 13153 21854 26306 43708 52612 92071 184142 368284 419017 838034 1676068 2933119 5866238 11732476 20531833 41063666 82127332