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73490085 = 345181457
BaseRepresentation
bin1000110000101…
…01111010100101
312010021200110000
410120111322211
5122303140320
611143051513
71551440544
oct430257245
9163250400
1073490085
1138535209
1220740b99
13122c1276
149a9015b
1566b9c90
hex4615ea5

73490085 has 20 divisors (see below), whose sum is σ = 131738508. Its totient is φ = 39194496.

The previous prime is 73490077. The next prime is 73490101. The reversal of 73490085 is 58009437.

It can be written as a sum of positive squares in 2 ways, for example, as 52751169 + 20738916 = 7263^2 + 4554^2 .

It is not a de Polignac number, because 73490085 - 23 = 73490077 is a prime.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 90324 + ... + 91133.

Almost surely, 273490085 is an apocalyptic number.

It is an amenable number.

73490085 is a deficient number, since it is larger than the sum of its proper divisors (58248423).

73490085 is a wasteful number, since it uses less digits than its factorization.

73490085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181474 (or 181465 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 73490085 is about 8572.6358256956. The cubic root of 73490085 is about 418.8670999457.

The spelling of 73490085 in words is "seventy-three million, four hundred ninety thousand, eighty-five".

Divisors: 1 3 5 9 15 27 45 81 135 405 181457 544371 907285 1633113 2721855 4899339 8165565 14698017 24496695 73490085