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1680750536 = 231931088569
BaseRepresentation
bin110010000101110…
…0011011111001000
311100010121222021212
41210023203133020
511420233004121
6434440152252
756436100223
oct14413433710
94303558255
101680750536
11792815833
123aaa68688
1320a29995a
1411d3145ba
159c85025b
hex642e37c8

1680750536 has 16 divisors (see below), whose sum is σ = 3167738700. Its totient is φ = 836020224.

The previous prime is 1680750521. The next prime is 1680750551. The reversal of 1680750536 is 6350570861.

It is an interprime number because it is at equal distance from previous prime (1680750521) and next prime (1680750551).

It can be written as a sum of positive squares in 2 ways, for example, as 1461532900 + 219217636 = 38230^2 + 14806^2 .

It is a super-3 number, since 3×16807505363 (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1680750493 and 1680750502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542741 + ... + 545828.

Almost surely, 21680750536 is an apocalyptic number.

It is an amenable number.

1680750536 is a deficient number, since it is larger than the sum of its proper divisors (1486988164).

1680750536 is a wasteful number, since it uses less digits than its factorization.

1680750536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088768 (or 1088764 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 1680750536 is about 40996.9576432203. The cubic root of 1680750536 is about 1188.9613930621.

The spelling of 1680750536 in words is "one billion, six hundred eighty million, seven hundred fifty thousand, five hundred thirty-six".

Divisors: 1 2 4 8 193 386 772 1544 1088569 2177138 4354276 8708552 210093817 420187634 840375268 1680750536