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51651560656106 = 2172620357976703
BaseRepresentation
bin10111011111010000100001…
…11011001100110011101010
320202212211201001220110102222
423233220100323030303222
523232224344011443411
6301504222133554042
713610462552364545
oct1357502073146352
9222784631813388
1051651560656106
1115504338489664
1259625031a5922
1322a894b827788
14ca7d3d9d785c
155e8897b154db
hex2efa10ecccea

51651560656106 has 16 divisors (see below), whose sum is σ = 82037963787264. Its totient is φ = 24305688732864.

The previous prime is 51651560656097. The next prime is 51651560656133. The reversal of 51651560656106 is 60165606515615.

It is a super-2 number, since 2×516515606561062 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28097450 + ... + 29879253.

It is an arithmetic number, because the mean of its divisors is an integer number (5127372736704).

Almost surely, 251651560656106 is an apocalyptic number.

51651560656106 is a deficient number, since it is larger than the sum of its proper divisors (30386403131158).

51651560656106 is a wasteful number, since it uses less digits than its factorization.

51651560656106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58002925.

The product of its (nonzero) digits is 4860000, while the sum is 53.

The spelling of 51651560656106 in words is "fifty-one trillion, six hundred fifty-one billion, five hundred sixty million, six hundred fifty-six thousand, one hundred six".

Divisors: 1 2 17 34 26203 52406 445451 890902 57976703 115953406 985603951 1971207902 1519163548709 3038327097418 25825780328053 51651560656106