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20010202102020 = 22351325654105259
BaseRepresentation
bin1001000110010111111001…
…11111001111100100000100
32121211221211101111222122010
410203023330333033210010
510110321343214231040
6110320320540334220
74133455314324354
oct443137477174404
977757741458563
1020010202102020
116415308470309
1222b2140244370
13b21c52b131b0
144d26db18cb64
1524a7a0865e80
hex1232fcfcf904

20010202102020 has 48 divisors (see below), whose sum is σ = 60338455571520. Its totient is φ = 4925588209536.

The previous prime is 20010202102001. The next prime is 20010202102067. The reversal of 20010202102020 is 2020120201002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20010202101987 and 20010202102005.

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, 12827051850 + ... + 12827053409.

It is an arithmetic number, because the mean of its divisors is an integer number (1257051157740).

Almost surely, 220010202102020 is an apocalyptic number.

20010202102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010202102020 is an abundant number, since it is smaller than the sum of its proper divisors (40328253469500).

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

20010202102020 is a wasteful number, since it uses less digits than its factorization.

20010202102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25654105284 (or 25654105282 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20010202102020 its reverse (2020120201002), we get a palindrome (22030322303022).

The spelling of 20010202102020 in words is "twenty trillion, ten billion, two hundred two million, one hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 25654105259 51308210518 76962315777 102616421036 128270526295 153924631554 256541052590 307849263108 333503368367 384811578885 513082105180 667006736734 769623157770 1000510105101 1334013473468 1539246315540 1667516841835 2001020210202 3335033683670 4002040420404 5002550525505 6670067367340 10005101051010 20010202102020