Search a number
-
+
20124413143 = 181194957047
BaseRepresentation
bin10010101111100000…
…100010110011010111
31220221111122002222221
4102233200202303113
5312203322210033
613124532003211
71311462455302
oct225740426327
956844562887
1020124413143
1185977854aa
123a97760507
131b893b8493
14d8ca2db39
157cbb4412d
hex4af822cd7

20124413143 has 8 divisors (see below), whose sum is σ = 20246335200. Its totient is φ = 20002609440.

The previous prime is 20124413137. The next prime is 20124413159. The reversal of 20124413143 is 34131442102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20124413143 is a prime.

It is a super-2 number, since 2×201244131432 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124413173) 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, 324246 + ... + 381292.

It is an arithmetic number, because the mean of its divisors is an integer number (2530791900).

Almost surely, 220124413143 is an apocalyptic number.

20124413143 is a deficient number, since it is larger than the sum of its proper divisors (121922057).

20124413143 is a wasteful number, since it uses less digits than its factorization.

20124413143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59177.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20124413143 its reverse (34131442102), we get a palindrome (54255855245).

The spelling of 20124413143 in words is "twenty billion, one hundred twenty-four million, four hundred thirteen thousand, one hundred forty-three".

Divisors: 1 181 1949 57047 352769 10325507 111184603 20124413143