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82620741 = 3737113941
BaseRepresentation
bin1001110110010…
…11000101000101
312202110120100110
410323023011011
5132122330431
612110503233
72022156540
oct473130505
9182416313
1082620741
1142701205
1223804b19
131416a218
14ad89857
1573c0346
hex4ecb145

82620741 has 32 divisors (see below), whose sum is σ = 130583808. Its totient is φ = 45480960.

The previous prime is 82620719. The next prime is 82620751. The reversal of 82620741 is 14702628.

It is not a de Polignac number, because 82620741 - 27 = 82620613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82620699 and 82620708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82620751) 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 31 ways as a sum of consecutive naturals, for example, 87331 + ... + 88271.

It is an arithmetic number, because the mean of its divisors is an integer number (4080744).

Almost surely, 282620741 is an apocalyptic number.

It is an amenable number.

82620741 is a deficient number, since it is larger than the sum of its proper divisors (47963067).

82620741 is a wasteful number, since it uses less digits than its factorization.

82620741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 82620741 is about 9089.5952055083. The cubic root of 82620741 is about 435.5416531810.

The spelling of 82620741 in words is "eighty-two million, six hundred twenty thousand, seven hundred forty-one".

Divisors: 1 3 7 21 37 111 113 259 339 777 791 941 2373 2823 4181 6587 12543 19761 29267 34817 87801 104451 106333 243719 318999 731157 744331 2232993 3934321 11802963 27540247 82620741