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82497925 = 5247611151
BaseRepresentation
bin1001110101011…
…01000110000101
312202020022212201
410322231012011
5132104413200
612104114501
72021135506
oct472550605
9182208781
1082497925
1142627a04
1223765a31
1314126353
14ad56bad
157398c6a
hex4ead185

82497925 has 24 divisors (see below), whose sum is σ = 106278912. Its totient is φ = 63480000.

The previous prime is 82497917. The next prime is 82497931. The reversal of 82497925 is 52979428.

It is not a de Polignac number, because 82497925 - 23 = 82497917 is a prime.

It is a Duffinian number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 71100 + ... + 72250.

It is an arithmetic number, because the mean of its divisors is an integer number (4428288).

Almost surely, 282497925 is an apocalyptic number.

It is an amenable number.

82497925 is a deficient number, since it is larger than the sum of its proper divisors (23780987).

82497925 is a wasteful number, since it uses less digits than its factorization.

82497925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269 (or 1264 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 82497925 is about 9082.8368365836. The cubic root of 82497925 is about 435.3257347969.

The spelling of 82497925 in words is "eighty-two million, four hundred ninety-seven thousand, nine hundred twenty-five".

Divisors: 1 5 25 47 61 235 305 1151 1175 1525 2867 5755 14335 28775 54097 70211 71675 270485 351055 1352425 1755275 3299917 16499585 82497925