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6918759055 = 513139765773
BaseRepresentation
bin1100111000110001…
…11110001010001111
3122212011212101011101
412130120332022033
5103132200242210
63102313003531
7333311324125
oct63430761217
918764771141
106918759055
112a3050609a
1214110b35a7
1386352ca90
14498c4d915
152a761ca3a
hex19c63e28f

6918759055 has 16 divisors (see below), whose sum is σ = 9005502240. Its totient is φ = 5072473728.

The previous prime is 6918759031. The next prime is 6918759097. The reversal of 6918759055 is 5509578196.

It is a cyclic number.

It is not a de Polignac number, because 6918759055 - 27 = 6918758927 is a prime.

It is a super-2 number, since 2×69187590552 = 95738453722288986050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6918758987 and 6918759005.

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, 373852 + ... + 391921.

It is an arithmetic number, because the mean of its divisors is an integer number (562843890).

Almost surely, 26918759055 is an apocalyptic number.

6918759055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6918759055 is a deficient number, since it is larger than the sum of its proper divisors (2086743185).

6918759055 is a wasteful number, since it uses less digits than its factorization.

6918759055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765930.

The product of its (nonzero) digits is 3402000, while the sum is 55.

The square root of 6918759055 is about 83179.0782288431. The cubic root of 6918759055 is about 1905.5019704411.

The spelling of 6918759055 in words is "six billion, nine hundred eighteen million, seven hundred fifty-nine thousand, fifty-five".

Divisors: 1 5 13 65 139 695 1807 9035 765773 3828865 9955049 49775245 106442447 532212235 1383751811 6918759055