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2056005 = 325761107
BaseRepresentation
bin111110101111101000101
310212110022100
413311331011
51011243010
6112022313
723322120
oct7657505
93773270
102056005
111184786
12831999
1356ca93
143b73b7
152a92c0
hex1f5f45

2056005 has 48 divisors (see below), whose sum is σ = 4178304. Its totient is φ = 915840.

The previous prime is 2056001. The next prime is 2056007. The reversal of 2056005 is 5006502.

It is not a de Polignac number, because 2056005 - 22 = 2056001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19162 + ... + 19268.

It is an arithmetic number, because the mean of its divisors is an integer number (87048).

22056005 is an apocalyptic number.

It is an amenable number.

2056005 is an abundant number, since it is smaller than the sum of its proper divisors (2122299).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2056005 is a wasteful number, since it uses less digits than its factorization.

2056005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2056005 is about 1433.8776098398. The cubic root of 2056005 is about 127.1573266728.

The spelling of 2056005 in words is "two million, fifty-six thousand, five".

Divisors: 1 3 5 7 9 15 21 35 45 61 63 105 107 183 305 315 321 427 535 549 749 915 963 1281 1605 2135 2247 2745 3745 3843 4815 6405 6527 6741 11235 19215 19581 32635 33705 45689 58743 97905 137067 228445 293715 411201 685335 2056005