Search a number
-
+
203031142424 = 23116137822493
BaseRepresentation
bin1011110100010110011…
…0010110000000011000
3201102001120220200012122
42331011212112000120
511311301433024144
6233134330000412
720445205143635
oct2750546260030
9642046820178
10203031142424
1179117872390
1233422876108
13161b82b8686
149b808b318c
15543461a7ee
hex2f45996018

203031142424 has 32 divisors (see below), whose sum is σ = 422099033040. Its totient is φ = 90773980800.

The previous prime is 203031142397. The next prime is 203031142481. The reversal of 203031142424 is 424241130302.

It is a junction number, because it is equal to n+sod(n) for n = 203031142393 and 203031142402.

It is a congruent 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, 18905879 + ... + 18916614.

Almost surely, 2203031142424 is an apocalyptic number.

It is an amenable number.

203031142424 is an abundant number, since it is smaller than the sum of its proper divisors (219067890616).

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

203031142424 is a wasteful number, since it uses less digits than its factorization.

203031142424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37822571 (or 37822567 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 203031142424 its reverse (424241130302), we get a palindrome (627272272726).

The spelling of 203031142424 in words is "two hundred three billion, thirty-one million, one hundred forty-two thousand, four hundred twenty-four".

Divisors: 1 2 4 8 11 22 44 61 88 122 244 488 671 1342 2684 5368 37822493 75644986 151289972 302579944 416047423 832094846 1664189692 2307172073 3328379384 4614344146 9228688292 18457376584 25378892803 50757785606 101515571212 203031142424