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20002031203 = 711231761779
BaseRepresentation
bin10010101000001101…
…101100011001100011
31220121222100110112111
4102220031230121203
5311431004444303
613104440540151
71305445313530
oct225015543143
956558313474
1020002031203
118534697100
123a62781657
131b69c3932b
14d7a693d87
157c101cb6d
hex4a836c663

20002031203 has 24 divisors (see below), whose sum is σ = 25937085440. Its totient is φ = 15083204400.

The previous prime is 20002031123. The next prime is 20002031209. The reversal of 20002031203 is 30213020002.

It is a happy number.

It is not a de Polignac number, because 20002031203 - 29 = 20002030691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002031209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354633 + ... + 407146.

Almost surely, 220002031203 is an apocalyptic number.

20002031203 is a deficient number, since it is larger than the sum of its proper divisors (5935054237).

20002031203 is a wasteful number, since it uses less digits than its factorization.

20002031203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761839 (or 761828 counting only the distinct ones).

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

Adding to 20002031203 its reverse (30213020002), we get a palindrome (50215051205).

The spelling of 20002031203 in words is "twenty billion, two million, thirty-one thousand, two hundred three".

Divisors: 1 7 11 31 77 121 217 341 847 2387 3751 26257 761779 5332453 8379569 23615149 58656983 92175259 165306043 259766639 645226813 1818366473 2857433029 20002031203