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20303031010 = 257612667941
BaseRepresentation
bin10010111010001001…
…111010101011100010
31221101221201211122111
4102322021322223202
5313040033443020
613154352225534
71316061626143
oct227211725342
957357654574
1020303031010
118679593779
123b2753b2aa
131bb73c7222
14da8647aca
157dc677d5a
hex4ba27aae2

20303031010 has 16 divisors (see below), whose sum is σ = 36593492472. Its totient is φ = 8110537600.

The previous prime is 20303030989. The next prime is 20303031037. The reversal of 20303031010 is 1013030302.

It can be written as a sum of positive squares in 4 ways, for example, as 8089023721 + 12214007289 = 89939^2 + 110517^2 .

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, 1326361 + ... + 1341580.

Almost surely, 220303031010 is an apocalyptic number.

20303031010 is a deficient number, since it is larger than the sum of its proper divisors (16290461462).

20303031010 is a wasteful number, since it uses less digits than its factorization.

20303031010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668709.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 20303031010 its reverse (1013030302), we get a palindrome (21316061312).

The spelling of 20303031010 in words is "twenty billion, three hundred three million, thirty-one thousand, ten".

Divisors: 1 2 5 10 761 1522 3805 7610 2667941 5335882 13339705 26679410 2030303101 4060606202 10151515505 20303031010