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103228985 = 5197104801
BaseRepresentation
bin1100010011100…
…10011000111001
321012020120112202
412021302120321
5202411311420
614124315545
72362301066
oct611623071
9235216482
10103228985
11532a7512
122a6a2bb5
1318504452
14d9d1c6d
1590e1575
hex6272639

103228985 has 8 divisors (see below), whose sum is σ = 124504776. Its totient is φ = 82163200.

The previous prime is 103228973. The next prime is 103228997. The reversal of 103228985 is 589822301.

It is an interprime number because it is at equal distance from previous prime (103228973) and next prime (103228997).

It can be written as a sum of positive squares in 4 ways, for example, as 61716736 + 41512249 = 7856^2 + 6443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103228985 - 212 = 103224889 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 51416 + ... + 53385.

It is an arithmetic number, because the mean of its divisors is an integer number (15563097).

Almost surely, 2103228985 is an apocalyptic number.

It is an amenable number.

103228985 is a deficient number, since it is larger than the sum of its proper divisors (21275791).

103228985 is a wasteful number, since it uses less digits than its factorization.

103228985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105003.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 103228985 is about 10160.1665832800. The cubic root of 103228985 is about 469.1019292523.

The spelling of 103228985 in words is "one hundred three million, two hundred twenty-eight thousand, nine hundred eighty-five".

Divisors: 1 5 197 985 104801 524005 20645797 103228985