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104893213 = 1720293041
BaseRepresentation
bin1100100000010…
…00101100011101
321022101010102211
412100020230131
5203323040323
614224120421
72412402055
oct620105435
9238333384
10104893213
1154233907
122b166111
1318967ab9
14dd06565
15931e70d
hex6408b1d

104893213 has 8 divisors (see below), whose sum is σ = 111154680. Its totient is φ = 98641920.

The previous prime is 104893183. The next prime is 104893219. The reversal of 104893213 is 312398401.

It can be written as a sum of positive squares in 4 ways, for example, as 91738084 + 13155129 = 9578^2 + 3627^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-104893213 is a prime.

It is a super-2 number, since 2×1048932132 = 22005172266926738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104893219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32973 + ... + 36013.

It is an arithmetic number, because the mean of its divisors is an integer number (13894335).

Almost surely, 2104893213 is an apocalyptic number.

It is an amenable number.

104893213 is a deficient number, since it is larger than the sum of its proper divisors (6261467).

104893213 is a wasteful number, since it uses less digits than its factorization.

104893213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 104893213 is about 10241.7387683928. The cubic root of 104893213 is about 471.6094109615.

The spelling of 104893213 in words is "one hundred four million, eight hundred ninety-three thousand, two hundred thirteen".

Divisors: 1 17 2029 3041 34493 51697 6170189 104893213