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6820654093 = 11620059463
BaseRepresentation
bin1100101101000101…
…01110110000001101
3122121100021010110021
412112202232300031
5102432041412333
63044450142141
7331010413621
oct62642566015
918540233407
106820654093
112990099410
1213a4281951
138491009c6
14489bd3181
1529dbde82d
hex1968aec0d

6820654093 has 4 divisors (see below), whose sum is σ = 7440713568. Its totient is φ = 6200594620.

The previous prime is 6820654091. The next prime is 6820654151. The reversal of 6820654093 is 3904560286.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6820654093 - 21 = 6820654091 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 (6820654091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310029721 + ... + 310029742.

It is an arithmetic number, because the mean of its divisors is an integer number (1860178392).

Almost surely, 26820654093 is an apocalyptic number.

It is an amenable number.

6820654093 is a deficient number, since it is larger than the sum of its proper divisors (620059475).

6820654093 is a wasteful number, since it uses less digits than its factorization.

6820654093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620059474.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 6820654093 is about 82587.2513951155. The cubic root of 6820654093 is about 1896.4526695646.

The spelling of 6820654093 in words is "six billion, eight hundred twenty million, six hundred fifty-four thousand, ninety-three".

Divisors: 1 11 620059463 6820654093