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2105055501 = 3897884103
BaseRepresentation
bin111110101111000…
…1001100100001101
312102201000220021120
41331132021210031
513302343234001
6544514351153
7103110451023
oct17536114415
95381026246
102105055501
1199028139a
124a8b8b4b9
1327716ac93
1415d804713
15c4c15236
hex7d78990d

2105055501 has 8 divisors (see below), whose sum is σ = 2838277440. Its totient is φ = 1387601952.

The previous prime is 2105055493. The next prime is 2105055577. The reversal of 2105055501 is 1055505012.

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

It is not a de Polignac number, because 2105055501 - 23 = 2105055493 is a prime.

It is a super-2 number, since 2×21050555012 = 8862517324580722002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105055401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3941785 + ... + 3942318.

It is an arithmetic number, because the mean of its divisors is an integer number (354784680).

Almost surely, 22105055501 is an apocalyptic number.

It is an amenable number.

2105055501 is a deficient number, since it is larger than the sum of its proper divisors (733221939).

2105055501 is an equidigital number, since it uses as much as digits as its factorization.

2105055501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884195.

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 2105055501 is about 45880.8838297607. The cubic root of 2105055501 is about 1281.6059556354.

The spelling of 2105055501 in words is "two billion, one hundred five million, fifty-five thousand, five hundred one".

Divisors: 1 3 89 267 7884103 23652309 701685167 2105055501