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20110013420 = 2257877163789
BaseRepresentation
bin10010101110101001…
…100111001111101100
31220220111112112021212
4102232221213033230
5312141130412140
613123255213552
71311226202510
oct225651471754
956814475255
1020110013420
11858a63a802
123a929772b8
131b86416133
14d8ab62140
157ca74c765
hex4aea673ec

20110013420 has 48 divisors (see below), whose sum is σ = 48319360320. Its totient is φ = 6886957824.

The previous prime is 20110013401. The next prime is 20110013437. The reversal of 20110013420 is 2431001102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20110013395 and 20110013404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40886 + ... + 204674.

It is an arithmetic number, because the mean of its divisors is an integer number (1006653340).

Almost surely, 220110013420 is an apocalyptic number.

20110013420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110013420 is an abundant number, since it is smaller than the sum of its proper divisors (28209346900).

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

20110013420 is a wasteful number, since it uses less digits than its factorization.

20110013420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164682 (or 164680 counting only the distinct ones).

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

Adding to 20110013420 its reverse (2431001102), we get a palindrome (22541014522).

The spelling of 20110013420 in words is "twenty billion, one hundred ten million, thirteen thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 877 1754 3508 4385 6139 8770 12278 17540 24556 30695 61390 122780 163789 327578 655156 818945 1146523 1637890 2293046 3275780 4586092 5732615 11465230 22930460 143642953 287285906 574571812 718214765 1005500671 1436429530 2011001342 2872859060 4022002684 5027503355 10055006710 20110013420