Search a number
-
+
20112012030 = 23511431417337
BaseRepresentation
bin10010101110110001…
…001111001011111110
31220220122022001212110
4102232301033023332
5312142133341110
613123410114450
71311252165405
oct225661171376
956818261773
1020112012030
118590785350
123a9357ba26
131b86965a46
14d8b12263c
157ca9e4a20
hex4aec4f2fe

20112012030 has 64 divisors (see below), whose sum is σ = 53881521408. Its totient is φ = 4762248960.

The previous prime is 20112012029. The next prime is 20112012071. The reversal of 20112012030 is 3021021102.

It is a junction number, because it is equal to n+sod(n) for n = 20112011997 and 20112012015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694479 + ... + 722858.

It is an arithmetic number, because the mean of its divisors is an integer number (841898772).

Almost surely, 220112012030 is an apocalyptic number.

20112012030 is an abundant number, since it is smaller than the sum of its proper divisors (33769509378).

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

20112012030 is a wasteful number, since it uses less digits than its factorization.

20112012030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417401.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20112012030 its reverse (3021021102), we get a palindrome (23133033132).

The spelling of 20112012030 in words is "twenty billion, one hundred twelve million, twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 43 55 66 86 110 129 165 215 258 330 430 473 645 946 1290 1419 2365 2838 4730 7095 14190 1417337 2834674 4252011 7086685 8504022 14173370 15590707 21260055 31181414 42520110 46772121 60945491 77953535 93544242 121890982 155907070 182836473 233860605 304727455 365672946 467721210 609454910 670400401 914182365 1340800802 1828364730 2011201203 3352002005 4022402406 6704004010 10056006015 20112012030