Search a number
-
+
20203321308 = 2232958055521
BaseRepresentation
bin10010110100001101…
…100011011111011100
31221011000010001122120
4102310031203133130
5312334022240213
613140431142540
71313441253252
oct226415433734
957130101576
1020203321308
118628280365
123aba074a50
131b9c8558c1
14d992d05d2
157d3a2e423
hex4b43637dc

20203321308 has 24 divisors (see below), whose sum is σ = 48766638480. Its totient is φ = 6502218240.

The previous prime is 20203321301. The next prime is 20203321361. The reversal of 20203321308 is 80312330202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203321301) 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, 29027413 + ... + 29028108.

It is an arithmetic number, because the mean of its divisors is an integer number (2031943270).

Almost surely, 220203321308 is an apocalyptic number.

It is an amenable number.

20203321308 is an abundant number, since it is smaller than the sum of its proper divisors (28563317172).

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

20203321308 is a wasteful number, since it uses less digits than its factorization.

20203321308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58055557 (or 58055555 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The spelling of 20203321308 in words is "twenty billion, two hundred three million, three hundred twenty-one thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 58055521 116111042 174166563 232222084 348333126 696666252 1683610109 3367220218 5050830327 6734440436 10101660654 20203321308