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6921077417 = 171607253343
BaseRepresentation
bin1100111001000011…
…10100001010101001
3122212100020011100122
412130201310022221
5103133243434132
63102434413025
7333340121162
oct63441641251
918770204318
106921077417
112a318499a1
121411a31175
13863b620a7
14499294769
152a7929912
hex19c8742a9

6921077417 has 8 divisors (see below), whose sum is σ = 7332788736. Its totient is φ = 6509876032.

The previous prime is 6921077413. The next prime is 6921077431. The reversal of 6921077417 is 7147701296.

6921077417 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6921077417 - 22 = 6921077413 is a prime.

It is a super-2 number, since 2×69210774172 = 95802625224214783778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6921077413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99353 + ... + 153990.

It is an arithmetic number, because the mean of its divisors is an integer number (916598592).

Almost surely, 26921077417 is an apocalyptic number.

It is an amenable number.

6921077417 is a deficient number, since it is larger than the sum of its proper divisors (411711319).

6921077417 is a wasteful number, since it uses less digits than its factorization.

6921077417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254967.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 6921077417 is about 83193.0130299414. The cubic root of 6921077417 is about 1905.7147807630.

The spelling of 6921077417 in words is "six billion, nine hundred twenty-one million, seventy-seven thousand, four hundred seventeen".

Divisors: 1 17 1607 27319 253343 4306831 407122201 6921077417