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67244913 = 3210317247
BaseRepresentation
bin1000000001000…
…01001101110001
311200112101200100
410000201031301
5114203314123
610401143013
71444400211
oct400411561
9150471610
1067244913
1134a5a10a
121a62aa69
1310c157b8
148d06241
155d84643
hex4021371

67244913 has 12 divisors (see below), whose sum is σ = 97239168. Its totient is φ = 44780280.

The previous prime is 67244909. The next prime is 67244923. The reversal of 67244913 is 31944276.

It is not a de Polignac number, because 67244913 - 22 = 67244909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67244923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5656 + ... + 12902.

It is an arithmetic number, because the mean of its divisors is an integer number (8103264).

Almost surely, 267244913 is an apocalyptic number.

It is an amenable number.

67244913 is a deficient number, since it is larger than the sum of its proper divisors (29994255).

67244913 is a wasteful number, since it uses less digits than its factorization.

67244913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8284 (or 8281 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 67244913 is about 8200.2995676987. The cubic root of 67244913 is about 406.6490967804.

The spelling of 67244913 in words is "sixty-seven million, two hundred forty-four thousand, nine hundred thirteen".

Divisors: 1 3 9 1031 3093 7247 9279 21741 65223 7471657 22414971 67244913