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61281554314 = 2145121117007
BaseRepresentation
bin111001000100101010…
…100100111110001010
312212011211001111202211
4321010222210332022
52001001034214224
644052524215334
74266420421441
oct710452447612
9185154044684
1061281554314
1123a97926862
12ba6309a54a
135a18107356
142d74b71d58
1518d9eec894
hexe44aa4f8a

61281554314 has 8 divisors (see below), whose sum is σ = 91985686848. Its totient is φ = 30619658700.

The previous prime is 61281554311. The next prime is 61281554317. The reversal of 61281554314 is 41345518216.

It is an interprime number because it is at equal distance from previous prime (61281554311) and next prime (61281554317).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61281554311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10555602 + ... + 10561405.

It is an arithmetic number, because the mean of its divisors is an integer number (11498210856).

Almost surely, 261281554314 is an apocalyptic number.

61281554314 is a deficient number, since it is larger than the sum of its proper divisors (30704132534).

61281554314 is a wasteful number, since it uses less digits than its factorization.

61281554314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21118460.

The product of its digits is 115200, while the sum is 40.

The spelling of 61281554314 in words is "sixty-one billion, two hundred eighty-one million, five hundred fifty-four thousand, three hundred fourteen".

Divisors: 1 2 1451 2902 21117007 42234014 30640777157 61281554314