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648083841 = 35339710267
BaseRepresentation
bin100110101000001…
…111100110000001
31200011111001220020
4212220033212001
52311402140331
6144150404053
722026423156
oct4650174601
91604431806
10648083841
1130290aa89
12161060629
13a4362a82
146210222d
153bd69c96
hex26a0f981

648083841 has 16 divisors (see below), whose sum is σ = 882719424. Its totient is φ = 422794944.

The previous prime is 648083833. The next prime is 648083873. The reversal of 648083841 is 148380846.

It is not a de Polignac number, because 648083841 - 23 = 648083833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 648083793 and 648083802.

It is not an unprimeable number, because it can be changed into a prime (648083801) 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 15 ways as a sum of consecutive naturals, for example, 57990 + ... + 68256.

It is an arithmetic number, because the mean of its divisors is an integer number (55169964).

Almost surely, 2648083841 is an apocalyptic number.

It is an amenable number.

648083841 is a deficient number, since it is larger than the sum of its proper divisors (234635583).

648083841 is a wasteful number, since it uses less digits than its factorization.

648083841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10720.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 648083841 is about 25457.4908622197. The cubic root of 648083841 is about 865.3870614534.

The spelling of 648083841 in words is "six hundred forty-eight million, eighty-three thousand, eight hundred forty-one".

Divisors: 1 3 53 159 397 1191 10267 21041 30801 63123 544151 1632453 4075999 12227997 216027947 648083841