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2073881 = 17121993
BaseRepresentation
bin111111010010100011001
310220100211102
413322110121
51012331011
6112241145
723425205
oct7722431
93810742
102073881
111197157
128401b5
13577c64
143bdb05
152ae73b
hex1fa519

2073881 has 4 divisors (see below), whose sum is σ = 2195892. Its totient is φ = 1951872.

The previous prime is 2073859. The next prime is 2073893. The reversal of 2073881 is 1883702.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1190281 + 883600 = 1091^2 + 940^2 .

It is not a de Polignac number, because 2073881 - 218 = 1811737 is a prime.

It is a super-2 number, since 2×20738812 = 8601964804322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2073811) 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, 60980 + ... + 61013.

It is an arithmetic number, because the mean of its divisors is an integer number (548973).

22073881 is an apocalyptic number.

It is an amenable number.

2073881 is a deficient number, since it is larger than the sum of its proper divisors (122011).

2073881 is a wasteful number, since it uses less digits than its factorization.

2073881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122010.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2073881 is about 1440.0975661392. The cubic root of 2073881 is about 127.5247882088.

The spelling of 2073881 in words is "two million, seventy-three thousand, eight hundred eighty-one".

Divisors: 1 17 121993 2073881