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20001033032 = 2331342118973
BaseRepresentation
bin10010101000001001…
…111000101101001000
31220121220110202022012
4102220021320231020
5311430231024112
613104403315052
71305433655441
oct225011705510
956556422265
1020001033032
118534075172
123a6237ba88
131b69979bb6
14d7a4b42c8
157c0dc2022
hex4a8278b48

20001033032 has 32 divisors (see below), whose sum is σ = 37713101880. Its totient is φ = 9944363520.

The previous prime is 20001032977. The next prime is 20001033037. The reversal of 20001033032 is 23033010002.

It can be written as a sum of positive squares in 4 ways, for example, as 2932655716 + 17068377316 = 54154^2 + 130646^2 .

It is a super-2 number, since 2×200010330322 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001032998 and 20001033016.

It is not an unprimeable number, because it can be changed into a prime (20001033037) 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, 1044698 + ... + 1063670.

Almost surely, 220001033032 is an apocalyptic number.

It is an amenable number.

20001033032 is a deficient number, since it is larger than the sum of its proper divisors (17712068848).

20001033032 is a wasteful number, since it uses less digits than its factorization.

20001033032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19713 (or 19709 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20001033032 its reverse (23033010002), we get a palindrome (43034043034).

The spelling of 20001033032 in words is "twenty billion, one million, thirty-three thousand, thirty-two".

Divisors: 1 2 4 8 313 421 626 842 1252 1684 2504 3368 18973 37946 75892 131773 151784 263546 527092 1054184 5938549 7987633 11877098 15975266 23754196 31950532 47508392 63901064 2500129129 5000258258 10000516516 20001033032