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102680450 = 25212131693
BaseRepresentation
bin1100001111011…
…00011110000010
321011012201002122
412013230132002
5202241233300
614104444242
72354524625
oct607543602
9234181078
10102680450
1152a62384
122a479682
1318371882
14d8cbdbc
159033c85
hex61ec782

102680450 has 24 divisors (see below), whose sum is σ = 191255988. Its totient is φ = 41014080.

The previous prime is 102680449. The next prime is 102680467. The reversal of 102680450 is 54086201.

It can be written as a sum of positive squares in 6 ways, for example, as 8532241 + 94148209 = 2921^2 + 9703^2 .

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 11 ways as a sum of consecutive naturals, for example, 59804 + ... + 61496.

Almost surely, 2102680450 is an apocalyptic number.

102680450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102680450 is a deficient number, since it is larger than the sum of its proper divisors (88575538).

102680450 is a wasteful number, since it uses less digits than its factorization.

102680450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2913 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 102680450 is about 10133.1362371183. The cubic root of 102680450 is about 468.2695533627.

The spelling of 102680450 in words is "one hundred two million, six hundred eighty thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 1213 1693 2426 3386 6065 8465 12130 16930 30325 42325 60650 84650 2053609 4107218 10268045 20536090 51340225 102680450