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20113131410 = 2515031133811
BaseRepresentation
bin10010101110110101…
…100000011110010010
31220220201101221100222
4102232311200132102
5312142430201120
613123450113042
71311264540041
oct225665403622
956821357328
1020113131410
11859137a359
123a93a1b782
131b86c683b8
14d8b334558
157cab66525
hex4aed60792

20113131410 has 16 divisors (see below), whose sum is σ = 36206315712. Its totient is φ = 8044657200.

The previous prime is 20113131407. The next prime is 20113131419. The reversal of 20113131410 is 1413131102.

It is a super-4 number, since 4×201131314104 (a number of 42 digits) contains 4444 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20113131419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83405 + ... + 217215.

It is an arithmetic number, because the mean of its divisors is an integer number (2262894732).

Almost surely, 220113131410 is an apocalyptic number.

20113131410 is a deficient number, since it is larger than the sum of its proper divisors (16093184302).

20113131410 is a wasteful number, since it uses less digits than its factorization.

20113131410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148849.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20113131410 its reverse (1413131102), we get a palindrome (21526262512).

The spelling of 20113131410 in words is "twenty billion, one hundred thirteen million, one hundred thirty-one thousand, four hundred ten".

Divisors: 1 2 5 10 15031 30062 75155 133811 150310 267622 669055 1338110 2011313141 4022626282 10056565705 20113131410