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20400300130 = 2571735233221
BaseRepresentation
bin10010111111111100…
…111110000001100010
31221122201202121210111
4102333330332001202
5313234434101010
613212145121534
71321352455450
oct227774760142
957581677714
1020400300130
11871948a481
123b540292aa
131c015c2a12
14db75279d0
157e5e8d58a
hex4bff3e062

20400300130 has 64 divisors (see below), whose sum is σ = 42302746368. Its totient is φ = 6938507520.

The previous prime is 20400300121. The next prime is 20400300139. The reversal of 20400300130 is 3100300402.

It is an interprime number because it is at equal distance from previous prime (20400300121) and next prime (20400300139).

It is a self number, because there is not a number n which added to its sum of digits gives 20400300130.

It is not an unprimeable number, because it can be changed into a prime (20400300139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6331920 + ... + 6335140.

It is an arithmetic number, because the mean of its divisors is an integer number (660980412).

Almost surely, 220400300130 is an apocalyptic number.

20400300130 is an abundant number, since it is smaller than the sum of its proper divisors (21902446238).

20400300130 is a wasteful number, since it uses less digits than its factorization.

20400300130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3931.

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

Adding to 20400300130 its reverse (3100300402), we get a palindrome (23500600532).

The spelling of 20400300130 in words is "twenty billion, four hundred million, three hundred thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 173 346 523 865 1046 1211 1730 2422 2615 3221 3661 5230 6055 6442 7322 12110 16105 18305 22547 32210 36610 45094 90479 112735 180958 225470 452395 557233 633353 904790 1114466 1266706 1684583 2786165 3166765 3369166 3900631 5572330 6333530 7801262 8422915 11792081 16845830 19503155 23584162 39006310 58960405 117920810 291432859 582865718 1457164295 2040030013 2914328590 4080060026 10200150065 20400300130