Search a number
-
+
20123033330 = 253785353161
BaseRepresentation
bin10010101111011011…
…010001111011110010
31220221102001000020202
4102233123101323302
5312202444031310
613124442235202
71311444650441
oct225733217362
956842030222
1020123033330
118596a22864
123a971b5b02
131b8902441a
14d8c790d58
157cb9703a5
hex4af6d1ef2

20123033330 has 16 divisors (see below), whose sum is σ = 36223098264. Its totient is φ = 8048849280.

The previous prime is 20123033311. The next prime is 20123033363. The reversal of 20123033330 is 3333032102.

20123033330 is digitally balanced in base 5, 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 11076931009 + 9046102321 = 105247^2 + 95111^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351950 + ... + 405110.

Almost surely, 220123033330 is an apocalyptic number.

20123033330 is a deficient number, since it is larger than the sum of its proper divisors (16100064934).

20123033330 is a wasteful number, since it uses less digits than its factorization.

20123033330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91021.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20123033330 its reverse (3333032102), we get a palindrome (23456065432).

The spelling of 20123033330 in words is "twenty billion, one hundred twenty-three million, thirty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 37853 53161 75706 106322 189265 265805 378530 531610 2012303333 4024606666 10061516665 20123033330