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20011312202 = 271975230497
BaseRepresentation
bin10010101000110001…
…000110010001001010
31220122121210222200012
4102220301012101022
5311440343442302
613105411511522
71305620230040
oct225061062112
956577728605
1020011312202
118539956052
123a658b85a2
131b6bb3884b
14d7b9cc390
157c1c52a52
hex4a8c4644a

20011312202 has 16 divisors (see below), whose sum is σ = 36110639040. Its totient is φ = 8124893568.

The previous prime is 20011312199. The next prime is 20011312253. The reversal of 20011312202 is 20221311002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37614983 + ... + 37615514.

It is an arithmetic number, because the mean of its divisors is an integer number (2256914940).

Almost surely, 220011312202 is an apocalyptic number.

20011312202 is a deficient number, since it is larger than the sum of its proper divisors (16099326838).

20011312202 is a wasteful number, since it uses less digits than its factorization.

20011312202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75230525.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20011312202 its reverse (20221311002), we get a palindrome (40232623204).

The spelling of 20011312202 in words is "twenty billion, eleven million, three hundred twelve thousand, two hundred two".

Divisors: 1 2 7 14 19 38 133 266 75230497 150460994 526613479 1053226958 1429379443 2858758886 10005656101 20011312202