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6918020711 = 77333194079
BaseRepresentation
bin1100111000101100…
…01001111001100111
3122212010110212100022
412130112021321213
5103132003130321
63102245105355
7333302130410
oct63426117147
918763425308
106918020711
112a30051398
1214109b825b
138633319a4
14498ada807
152a7523dab
hex19c589e67

6918020711 has 16 divisors (see below), whose sum is σ = 8018995200. Its totient is φ = 5845307328.

The previous prime is 6918020699. The next prime is 6918020713. The reversal of 6918020711 is 1170208196.

It is a de Polignac number, because none of the positive numbers 2k-6918020711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918020713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1693970 + ... + 1698048.

It is an arithmetic number, because the mean of its divisors is an integer number (501187200).

Almost surely, 26918020711 is an apocalyptic number.

6918020711 is a deficient number, since it is larger than the sum of its proper divisors (1100974489).

6918020711 is a wasteful number, since it uses less digits than its factorization.

6918020711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7478.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 6918020711 is about 83174.6398309004. The cubic root of 6918020711 is about 1905.4341853568.

The spelling of 6918020711 in words is "six billion, nine hundred eighteen million, twenty thousand, seven hundred eleven".

Divisors: 1 7 73 511 3319 4079 23233 28553 242287 297767 1696009 2084369 13538201 94767407 988288673 6918020711