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2105055487 is a prime number
BaseRepresentation
bin111110101111000…
…1001100011111111
312102201000220021001
41331132021203333
513302343233422
6544514351131
7103110451003
oct17536114377
95381026231
102105055487
11990281387
124a8b8b4a7
1327716ac82
1415d804703
15c4c15227
hex7d7898ff

2105055487 has 2 divisors, whose sum is σ = 2105055488. Its totient is φ = 2105055486.

The previous prime is 2105055457. The next prime is 2105055493. The reversal of 2105055487 is 7845505012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2105055487 - 211 = 2105053439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105055457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052527743 + 1052527744.

It is an arithmetic number, because the mean of its divisors is an integer number (1052527744).

Almost surely, 22105055487 is an apocalyptic number.

2105055487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105055487 is an equidigital number, since it uses as much as digits as its factorization.

2105055487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 2105055487 is about 45880.8836771917. The cubic root of 2105055487 is about 1281.6059527942.

The spelling of 2105055487 in words is "two billion, one hundred five million, fifty-five thousand, four hundred eighty-seven".