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68148274 = 2177327457
BaseRepresentation
bin1000000111111…
…01110000110010
311202020021212011
410003331300302
5114421221044
610432353134
71455152005
oct403756062
9152207764
1068148274
1135516897
121a9a57aa
1311170a2c
14909d53c
155eb2134
hex40fdc32

68148274 has 16 divisors (see below), whose sum is σ = 109722168. Its totient is φ = 31629312.

The previous prime is 68148251. The next prime is 68148277. The reversal of 68148274 is 47284186.

It can be written as a sum of positive squares in 4 ways, for example, as 52664049 + 15484225 = 7257^2 + 3935^2 .

It is not an unprimeable number, because it can be changed into a prime (68148277) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11247 + ... + 16210.

Almost surely, 268148274 is an apocalyptic number.

68148274 is a deficient number, since it is larger than the sum of its proper divisors (41573894).

68148274 is a wasteful number, since it uses less digits than its factorization.

68148274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27549.

The product of its digits is 86016, while the sum is 40.

The square root of 68148274 is about 8255.1967874788. The cubic root of 68148274 is about 408.4619631225.

The spelling of 68148274 in words is "sixty-eight million, one hundred forty-eight thousand, two hundred seventy-four".

Divisors: 1 2 17 34 73 146 1241 2482 27457 54914 466769 933538 2004361 4008722 34074137 68148274