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20123310214 = 278923161087
BaseRepresentation
bin10010101111011100…
…010101100010000110
31220221102120002001201
4102233130111202012
5312203031411324
613124452213114
71311450212620
oct225734254206
956842502051
1020123310214
1185970a1897
123a9730a19a
131b890c0467
14d8c823c10
157cb9c7444
hex4af715886

20123310214 has 16 divisors (see below), whose sum is σ = 34501183488. Its totient is φ = 8623255752.

The previous prime is 20123310211. The next prime is 20123310253. The reversal of 20123310214 is 41201332102.

It is a happy number.

It is a super-2 number, since 2×201233102142 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20123310191 and 20123310200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123310211) 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, 44379 + ... + 205465.

It is an arithmetic number, because the mean of its divisors is an integer number (2156323968).

Almost surely, 220123310214 is an apocalyptic number.

20123310214 is a deficient number, since it is larger than the sum of its proper divisors (14377873274).

20123310214 is a wasteful number, since it uses less digits than its factorization.

20123310214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170019.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20123310214 its reverse (41201332102), we get a palindrome (61324642316).

The spelling of 20123310214 in words is "twenty billion, one hundred twenty-three million, three hundred ten thousand, two hundred fourteen".

Divisors: 1 2 7 14 8923 17846 62461 124922 161087 322174 1127609 2255218 1437379301 2874758602 10061655107 20123310214