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82146976 = 2547193283
BaseRepresentation
bin1001110010101…
…11011010100000
312201120111110121
410321113122200
5132012200401
612052410024
72015144362
oct471273240
9181514417
1082146976
114240826a
1223616914
13140326a2
14aca4d32
157329ca1
hex4e576a0

82146976 has 48 divisors (see below), whose sum is σ = 166610304. Its totient is φ = 39849984.

The previous prime is 82146971. The next prime is 82146991. The reversal of 82146976 is 67964128.

It is not an unprimeable number, because it can be changed into a prime (82146971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 290131 + ... + 290413.

It is an arithmetic number, because the mean of its divisors is an integer number (3471048).

Almost surely, 282146976 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 82146976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83305152).

82146976 is an abundant number, since it is smaller than the sum of its proper divisors (84463328).

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

82146976 is a wasteful number, since it uses less digits than its factorization.

82146976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 525 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 82146976 is about 9063.4968968936. The cubic root of 82146976 is about 434.7075605237.

The spelling of 82146976 in words is "eighty-two million, one hundred forty-six thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 32 47 94 188 193 283 376 386 566 752 772 1132 1504 1544 2264 3088 4528 6176 9056 9071 13301 18142 26602 36284 53204 54619 72568 106408 109238 145136 212816 218476 290272 425632 436952 873904 1747808 2567093 5134186 10268372 20536744 41073488 82146976