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67243130 = 2519334841
BaseRepresentation
bin1000000001000…
…00110001111010
311200112022020022
410000200301322
5114203240010
610401130442
71444362053
oct400406172
9150468208
1067243130
1134a58839
121a629a22
1310c14a46
148d0572a
155d83d55
hex4020c7a

67243130 has 16 divisors (see below), whose sum is σ = 121668264. Its totient is φ = 26757120.

The previous prime is 67243117. The next prime is 67243133. The reversal of 67243130 is 3134276.

It can be written as a sum of positive squares in 4 ways, for example, as 32821441 + 34421689 = 5729^2 + 5867^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67243130.

It is not an unprimeable number, because it can be changed into a prime (67243133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15491 + ... + 19350.

Almost surely, 267243130 is an apocalyptic number.

67243130 is a deficient number, since it is larger than the sum of its proper divisors (54425134).

67243130 is a wasteful number, since it uses less digits than its factorization.

67243130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35041.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 67243130 is about 8200.1908514375. The cubic root of 67243130 is about 406.6455026461.

The spelling of 67243130 in words is "sixty-seven million, two hundred forty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 193 386 965 1930 34841 69682 174205 348410 6724313 13448626 33621565 67243130