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51161350214 = 21367103285139
BaseRepresentation
bin101111101001011101…
…000100000001000110
311220001112002212121202
4233221131010001012
51314234301201324
635300405142502
73460553205302
oct575135040106
9156045085552
1051161350214
111a774280717
129ab99baa32
134a945510c0
142694a7cd02
1514e67e88ae
hexbe9744046

51161350214 has 32 divisors (see below), whose sum is σ = 84693423360. Its totient is φ = 23034588192.

The previous prime is 51161350193. The next prime is 51161350231. The reversal of 51161350214 is 41205316115.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36857 + ... + 321995.

It is an arithmetic number, because the mean of its divisors is an integer number (2646669480).

Almost surely, 251161350214 is an apocalyptic number.

51161350214 is a deficient number, since it is larger than the sum of its proper divisors (33532073146).

51161350214 is a wasteful number, since it uses less digits than its factorization.

51161350214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285324.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 51161350214 its reverse (41205316115), we get a palindrome (92366666329).

The spelling of 51161350214 in words is "fifty-one billion, one hundred sixty-one million, three hundred fifty thousand, two hundred fourteen".

Divisors: 1 2 13 26 67 103 134 206 871 1339 1742 2678 6901 13802 89713 179426 285139 570278 3706807 7413614 19104313 29369317 38208626 58738634 248356069 381801121 496712138 763602242 1967744239 3935488478 25580675107 51161350214