Search a number
-
+
20303103986 = 2112931823047
BaseRepresentation
bin10010111010001010…
…001100011111110010
31221101221212112202022
4102322022030133302
5313040043311421
613154353551442
71316062351664
oct227212143762
957357775668
1020303103986
118679633590
123b27575582
131bb74214c9
14da8666534
157dc68e7ab
hex4ba28c7f2

20303103986 has 16 divisors (see below), whose sum is σ = 34368891840. Its totient is φ = 8910452880.

The previous prime is 20303103983. The next prime is 20303104033. The reversal of 20303103986 is 68930130302.

It is not an unprimeable number, because it can be changed into a prime (20303103983) 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, 15910886 + ... + 15912161.

It is an arithmetic number, because the mean of its divisors is an integer number (2148055740).

Almost surely, 220303103986 is an apocalyptic number.

20303103986 is a deficient number, since it is larger than the sum of its proper divisors (14065787854).

20303103986 is a wasteful number, since it uses less digits than its factorization.

20303103986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31823089.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 20303103986 in words is "twenty billion, three hundred three million, one hundred three thousand, nine hundred eighty-six".

Divisors: 1 2 11 22 29 58 319 638 31823047 63646094 350053517 700107034 922868363 1845736726 10151551993 20303103986