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2055913 = 5233931
BaseRepresentation
bin111110101111011101001
310212110011221
413311323221
51011242123
6112022041
723321626
oct7657351
93773157
102055913
111184702
12831921
1356ca22
143b734d
152a925d
hex1f5ee9

2055913 has 4 divisors (see below), whose sum is σ = 2060368. Its totient is φ = 2051460.

The previous prime is 2055853. The next prime is 2055917. The reversal of 2055913 is 3195502.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2055913 is a prime.

It is a Duffinian number.

2055913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2055917) 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, 1443 + ... + 2488.

It is an arithmetic number, because the mean of its divisors is an integer number (515092).

22055913 is an apocalyptic number.

It is an amenable number.

2055913 is a deficient number, since it is larger than the sum of its proper divisors (4455).

2055913 is an equidigital number, since it uses as much as digits as its factorization.

2055913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 2055913 is about 1433.8455286397. The cubic root of 2055913 is about 127.1554300093.

It can be divided in two parts, 20 and 55913, that multiplied together give a triangular number (1118260 = T1495).

The spelling of 2055913 in words is "two million, fifty-five thousand, nine hundred thirteen".

Divisors: 1 523 3931 2055913