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83203925 = 5274311057
BaseRepresentation
bin1001111010110…
…01011101010101
312210120012022212
410331121131111
5132300011200
612131203205
72030136020
oct475313525
9183505285
1083203925
1142a6a382
1223a46505
13143127bc
14b09c1b7
157488035
hex4f59755

83203925 has 24 divisors (see below), whose sum is σ = 120664896. Its totient is φ = 55722240.

The previous prime is 83203921. The next prime is 83203937. The reversal of 83203925 is 52930238.

It is not a de Polignac number, because 83203925 - 22 = 83203921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83203891 and 83203900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83203921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1997 + ... + 13053.

It is an arithmetic number, because the mean of its divisors is an integer number (5027704).

Almost surely, 283203925 is an apocalyptic number.

It is an amenable number.

83203925 is a deficient number, since it is larger than the sum of its proper divisors (37460971).

83203925 is a wasteful number, since it uses less digits than its factorization.

83203925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11117 (or 11112 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 83203925 is about 9121.6185515510. The cubic root of 83203925 is about 436.5640180477.

The spelling of 83203925 in words is "eighty-three million, two hundred three thousand, nine hundred twenty-five".

Divisors: 1 5 7 25 35 43 175 215 301 1075 1505 7525 11057 55285 77399 276425 386995 475451 1934975 2377255 3328157 11886275 16640785 83203925