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67616090 = 2523293983
BaseRepresentation
bin1000000011110…
…11110101011010
311201020020211122
410001323311122
5114302203330
610413125242
71450504313
oct401736532
9151206748
1067616090
1135192a73
121a789822
1311015729
148da160a
155e095e5
hex407bd5a

67616090 has 16 divisors (see below), whose sum is σ = 127001088. Its totient is φ = 25870416.

The previous prime is 67616083. The next prime is 67616111. The reversal of 67616090 is 9061676.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67616090.

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, 146762 + ... + 147221.

It is an arithmetic number, because the mean of its divisors is an integer number (7937568).

Almost surely, 267616090 is an apocalyptic number.

67616090 is a deficient number, since it is larger than the sum of its proper divisors (59384998).

67616090 is a wasteful number, since it uses less digits than its factorization.

67616090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294013.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 67616090 is about 8222.9003399044. The cubic root of 67616090 is about 407.3959286093.

The spelling of 67616090 in words is "sixty-seven million, six hundred sixteen thousand, ninety".

Divisors: 1 2 5 10 23 46 115 230 293983 587966 1469915 2939830 6761609 13523218 33808045 67616090