Search a number
-
+
2087930 = 251316061
BaseRepresentation
bin111111101101111111010
310221002002202
413331233322
51013303210
6112430202
723514155
oct7755772
93832082
102087930
1111a6769
12848362
13581480
143c4c9c
152b39a5
hex1fdbfa

2087930 has 16 divisors (see below), whose sum is σ = 4047624. Its totient is φ = 770880.

The previous prime is 2087927. The next prime is 2087941. The reversal of 2087930 is 397802.

It can be written as a sum of positive squares in 4 ways, for example, as 606841 + 1481089 = 779^2 + 1217^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2087893 and 2087902.

It is an unprimeable number.

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, 7901 + ... + 8160.

22087930 is an apocalyptic number.

2087930 is a deficient number, since it is larger than the sum of its proper divisors (1959694).

2087930 is a wasteful number, since it uses less digits than its factorization.

2087930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16081.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2087930 is about 1444.9671276538. The cubic root of 2087930 is about 127.8121022399.

The spelling of 2087930 in words is "two million, eighty-seven thousand, nine hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 16061 32122 80305 160610 208793 417586 1043965 2087930