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2078187073 = 19973073673
BaseRepresentation
bin111101111011110…
…1001111001000001
312100211110211201121
41323313221321001
513224003441243
6542114432241
7102333204304
oct17367517101
95324424647
102078187073
1197709a786
1249bb92681
132717214c1
1415a00cb3b
15c26a91ed
hex7bde9e41

2078187073 has 16 divisors (see below), whose sum is σ = 2217920320. Its totient is φ = 1941636096.

The previous prime is 2078187053. The next prime is 2078187091. The reversal of 2078187073 is 3707818702.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2078187073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2078187053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563965 + ... + 567637.

It is an arithmetic number, because the mean of its divisors is an integer number (138620020).

Almost surely, 22078187073 is an apocalyptic number.

It is an amenable number.

2078187073 is a deficient number, since it is larger than the sum of its proper divisors (139733247).

2078187073 is a wasteful number, since it uses less digits than its factorization.

2078187073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 2078187073 is about 45587.1371441550. The cubic root of 2078187073 is about 1276.1298861257.

The spelling of 2078187073 in words is "two billion, seventy-eight million, one hundred eighty-seven thousand, seventy-three".

Divisors: 1 19 97 307 1843 3673 5833 29779 69787 356281 565801 1127611 6769339 21424609 109378267 2078187073