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68762274 = 2371637197
BaseRepresentation
bin1000001100100…
…11101010100010
311210101111002220
410012103222202
5120100343044
610453451510
71463320050
oct406235242
9153344086
1068762274
11358a6129
121b040b96
1311327349
1491bd1d0
156084019
hex4193aa2

68762274 has 16 divisors (see below), whose sum is σ = 157171008. Its totient is φ = 19646352.

The previous prime is 68762251. The next prime is 68762279. The reversal of 68762274 is 47226786.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1637197 = 68762274 / (6 + 8 + 7 + 6 + 2 + 2 + 7 + 4).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68762279) by changing a digit.

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, 818557 + ... + 818640.

It is an arithmetic number, because the mean of its divisors is an integer number (9823188).

Almost surely, 268762274 is an apocalyptic number.

68762274 is an abundant number, since it is smaller than the sum of its proper divisors (88408734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68762274 is a wasteful number, since it uses less digits than its factorization.

68762274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637209.

The product of its digits is 225792, while the sum is 42.

The square root of 68762274 is about 8292.3020929052. The cubic root of 68762274 is about 409.6850128782.

The spelling of 68762274 in words is "sixty-eight million, seven hundred sixty-two thousand, two hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 1637197 3274394 4911591 9823182 11460379 22920758 34381137 68762274