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7689171916 = 2271112923981
BaseRepresentation
bin1110010100100111…
…10111001111001100
3201211212112101221001
413022103313033030
5111221412000131
63310553350044
7361354611556
oct71223671714
921755471831
107689171916
113296378738
1215a7108324
1395702388a
1452d2b64d6
1530009d261
hex1ca4f73cc

7689171916 has 24 divisors (see below), whose sum is σ = 13658228640. Its totient is φ = 3786921600.

The previous prime is 7689171899. The next prime is 7689171923. The reversal of 7689171916 is 6191719867.

It is a super-2 number, since 2×76891719162 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 308646 + ... + 332626.

It is an arithmetic number, because the mean of its divisors is an integer number (569092860).

Almost surely, 27689171916 is an apocalyptic number.

It is an amenable number.

7689171916 is a deficient number, since it is larger than the sum of its proper divisors (5969056724).

7689171916 is a wasteful number, since it uses less digits than its factorization.

7689171916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25185 (or 25183 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 55.

The square root of 7689171916 is about 87687.9234330475. The cubic root of 7689171916 is about 1973.7547598560.

The spelling of 7689171916 in words is "seven billion, six hundred eighty-nine million, one hundred seventy-one thousand, nine hundred sixteen".

Divisors: 1 2 4 71 142 284 1129 2258 4516 23981 47962 80159 95924 160318 320636 1702651 3405302 6810604 27074549 54149098 108298196 1922292979 3844585958 7689171916