Search a number
-
+
205925926130 = 2561213364253
BaseRepresentation
bin1011111111001000100…
…1000100010011110010
3201200112022221220220222
42333302021010103302
511333214014114010
6234333455133042
720610015330401
oct2776211042362
9650468856828
10205925926130
117a3728a9211
1233ab0214182
1316559c51042
149d7712b638
155553829355
hex2ff22444f2

205925926130 has 16 divisors (see below), whose sum is σ = 370727333784. Its totient is φ = 82356888960.

The previous prime is 205925926061. The next prime is 205925926133. The reversal of 205925926130 is 31629529502.

205925926130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 168053263249 + 37872662881 = 409943^2 + 194609^2 .

It is not an unprimeable number, because it can be changed into a prime (205925926133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620917 + ... + 1743336.

Almost surely, 2205925926130 is an apocalyptic number.

205925926130 is a deficient number, since it is larger than the sum of its proper divisors (164801407654).

205925926130 is a wasteful number, since it uses less digits than its factorization.

205925926130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370381.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 205925926130 in words is "two hundred five billion, nine hundred twenty-five million, nine hundred twenty-six thousand, one hundred thirty".

Divisors: 1 2 5 10 6121 12242 30605 61210 3364253 6728506 16821265 33642530 20592592613 41185185226 102962963065 205925926130