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68047122 = 23111379309
BaseRepresentation
bin1000000111001…
…01000100010010
311202001011002210
410003211010102
5114410001442
610430252550
71454251053
oct403450422
9152034083
1068047122
11354578a0
121a957156
1311136990
14907472a
155e9219c
hex40e5112

68047122 has 32 divisors (see below), whose sum is σ = 159888960. Its totient is φ = 19033920.

The previous prime is 68047103. The next prime is 68047123. The reversal of 68047122 is 22174086.

It is a self number, because there is not a number n which added to its sum of digits gives 68047122.

It is not an unprimeable number, because it can be changed into a prime (68047123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38797 + ... + 40512.

It is an arithmetic number, because the mean of its divisors is an integer number (4996530).

Almost surely, 268047122 is an apocalyptic number.

68047122 is an abundant number, since it is smaller than the sum of its proper divisors (91841838).

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

68047122 is a wasteful number, since it uses less digits than its factorization.

68047122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79338.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 68047122 is about 8249.0679473502. The cubic root of 68047122 is about 408.2597706531.

The spelling of 68047122 in words is "sixty-eight million, forty-seven thousand, one hundred twenty-two".

Divisors: 1 2 3 6 11 13 22 26 33 39 66 78 143 286 429 858 79309 158618 237927 475854 872399 1031017 1744798 2062034 2617197 3093051 5234394 6186102 11341187 22682374 34023561 68047122