Search a number
-
+
20023201030 = 2571032777143
BaseRepresentation
bin10010101001011110…
…011100110100000110
31220200110012000002011
4102221132130310012
5312001414413110
613110514404434
71306123254250
oct225136346406
956613160064
1020023201030
118545636328
123a6989071a
131b7143c061
14d7d404cd0
157c2d0048a
hex4a979cd06

20023201030 has 32 divisors (see below), whose sum is σ = 41590508544. Its totient is φ = 6798443616.

The previous prime is 20023201027. The next prime is 20023201063. The reversal of 20023201030 is 3010232002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20023201030.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1381362 + ... + 1395781.

It is an arithmetic number, because the mean of its divisors is an integer number (1299703392).

Almost surely, 220023201030 is an apocalyptic number.

20023201030 is an abundant number, since it is smaller than the sum of its proper divisors (21567307514).

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

20023201030 is a wasteful number, since it uses less digits than its factorization.

20023201030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777260.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20023201030 its reverse (3010232002), we get a palindrome (23033433032).

The spelling of 20023201030 in words is "twenty billion, twenty-three million, two hundred one thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 103 206 515 721 1030 1442 3605 7210 2777143 5554286 13885715 19440001 27771430 38880002 97200005 194400010 286045729 572091458 1430228645 2002320103 2860457290 4004640206 10011600515 20023201030