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67941970 = 2518137537
BaseRepresentation
bin1000000110010…
…11011001010010
311201211210212021
410003023121102
5114343120340
610424122054
71453332355
oct403133122
9151753767
1067941970
1135395898
121a90632a
13110cab65
14904829c
155e70e4a
hex40cb652

67941970 has 16 divisors (see below), whose sum is σ = 122974488. Its totient is φ = 27025920.

The previous prime is 67941899. The next prime is 67942003. The reversal of 67941970 is 7914976.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30107169 + 37834801 = 5487^2 + 6151^2 .

It is a super-2 number, since 2×679419702 = 9232222574961800, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16959 + ... + 20578.

Almost surely, 267941970 is an apocalyptic number.

67941970 is a deficient number, since it is larger than the sum of its proper divisors (55032518).

67941970 is a wasteful number, since it uses less digits than its factorization.

67941970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37725.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 67941970 is about 8242.6919146599. The cubic root of 67941970 is about 408.0493700670.

The spelling of 67941970 in words is "sixty-seven million, nine hundred forty-one thousand, nine hundred seventy".

Divisors: 1 2 5 10 181 362 905 1810 37537 75074 187685 375370 6794197 13588394 33970985 67941970