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1668180034 = 210116749451
BaseRepresentation
bin110001101101110…
…0110100001000010
311022020222022210201
41203123212201002
511404023230114
6433310515414
756224203433
oct14333464102
94266868721
101668180034
1178670a394
123a6805b6a
132077b80a1
1411b7a148a
159b6ba874
hex636e6842

1668180034 has 16 divisors (see below), whose sum is σ = 2542228416. Its totient is φ = 820870000.

The previous prime is 1668179987. The next prime is 1668180049. The reversal of 1668180034 is 4300818661.

It is a junction number, because it is equal to n+sod(n) for n = 1668179975 and 1668180002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9009 + ... + 58459.

It is an arithmetic number, because the mean of its divisors is an integer number (158889276).

Almost surely, 21668180034 is an apocalyptic number.

1668180034 is a deficient number, since it is larger than the sum of its proper divisors (874048382).

1668180034 is a wasteful number, since it uses less digits than its factorization.

1668180034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49721.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1668180034 is about 40843.3597295815. The cubic root of 1668180034 is about 1185.9898520100.

Adding to 1668180034 its reverse (4300818661), we get a palindrome (5968998695).

The spelling of 1668180034 in words is "one billion, six hundred sixty-eight million, one hundred eighty thousand, thirty-four".

Divisors: 1 2 101 167 202 334 16867 33734 49451 98902 4994551 8258317 9989102 16516634 834090017 1668180034