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20103101420 = 2256011672471
BaseRepresentation
bin10010101110001111…
…001111101111101100
31220220000112100210212
4102232033033233230
5312132343221140
613122451121552
71311113354063
oct225617175754
956800470725
1020103101420
118586749706
123a905a32b8
131b84b65cac
14d89c831da
157c9d34765
hex4ae3cfbec

20103101420 has 24 divisors (see below), whose sum is σ = 42286782048. Its totient is φ = 8027856000.

The previous prime is 20103101377. The next prime is 20103101429. The reversal of 20103101420 is 2410130102.

It is a junction number, because it is equal to n+sod(n) for n = 20103101395 and 20103101404.

It is not an unprimeable number, because it can be changed into a prime (20103101429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824216 + ... + 848255.

It is an arithmetic number, because the mean of its divisors is an integer number (1761949252).

Almost surely, 220103101420 is an apocalyptic number.

20103101420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103101420 is an abundant number, since it is smaller than the sum of its proper divisors (22183680628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20103101420 is a wasteful number, since it uses less digits than its factorization.

20103101420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673081 (or 1673079 counting only the distinct ones).

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

Adding to 20103101420 its reverse (2410130102), we get a palindrome (22513231522).

The spelling of 20103101420 in words is "twenty billion, one hundred three million, one hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 601 1202 2404 3005 6010 12020 1672471 3344942 6689884 8362355 16724710 33449420 1005155071 2010310142 4020620284 5025775355 10051550710 20103101420