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67676650 = 2524133013
BaseRepresentation
bin1000000100010…
…10100111101010
311201100022220121
410002022213222
5114311123100
610414313454
71451146006
oct402124752
9151308817
1067676650
1135224518
121a7b888a
1311037172
148db9706
155e1c51a
hex408a9ea

67676650 has 24 divisors (see below), whose sum is σ = 128952684. Its totient is φ = 26409600.

The previous prime is 67676639. The next prime is 67676659. The reversal of 67676650 is 5667676.

It can be written as a sum of positive squares in 6 ways, for example, as 2277081 + 65399569 = 1509^2 + 8087^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67676597 and 67676606.

It is not an unprimeable number, because it can be changed into a prime (67676659) 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 11 ways as a sum of consecutive naturals, for example, 14457 + ... + 18556.

Almost surely, 267676650 is an apocalyptic number.

67676650 is a deficient number, since it is larger than the sum of its proper divisors (61276034).

67676650 is a wasteful number, since it uses less digits than its factorization.

67676650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33066 (or 33061 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 67676650 is about 8226.5819147444. The cubic root of 67676650 is about 407.5175196653.

The spelling of 67676650 in words is "sixty-seven million, six hundred seventy-six thousand, six hundred fifty".

Divisors: 1 2 5 10 25 41 50 82 205 410 1025 2050 33013 66026 165065 330130 825325 1353533 1650650 2707066 6767665 13535330 33838325 67676650