Search a number
-
+
2061047886 = 231791919039
BaseRepresentation
bin111101011011001…
…0001100001001110
312022122020002011220
41322312101201032
513210112013021
6540303224210
7102034421652
oct17266214116
95278202156
102061047886
11968453867
124962a8066
1326b000281
14157a2aa62
15c0e20cc6
hex7ad9184e

2061047886 has 16 divisors (see below), whose sum is σ = 4145126400. Its totient is φ = 683177528.

The previous prime is 2061047881. The next prime is 2061047897. The reversal of 2061047886 is 6887401602.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061047881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958446 + ... + 960593.

It is an arithmetic number, because the mean of its divisors is an integer number (259070400).

Almost surely, 22061047886 is an apocalyptic number.

2061047886 is an abundant number, since it is smaller than the sum of its proper divisors (2084078514).

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

2061047886 is a wasteful number, since it uses less digits than its factorization.

2061047886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919223.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 2061047886 is about 45398.7652475263. The cubic root of 2061047886 is about 1272.6120390824.

The spelling of 2061047886 in words is "two billion, sixty-one million, forty-seven thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 179 358 537 1074 1919039 3838078 5757117 11514234 343507981 687015962 1030523943 2061047886