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2028202113 = 37435938069
BaseRepresentation
bin111100011100011…
…1110100010000001
312020100102100020210
41320320332202001
513123204431423
6533131224333
7101155301460
oct17070764201
95210370223
102028202113
1195095a2a3
124872a80a9
1326426cbc2
1415351a9d7
15bd0d3b93
hex78e3e881

2028202113 has 32 divisors (see below), whose sum is σ = 3216153600. Its totient is φ = 1112803776.

The previous prime is 2028202093. The next prime is 2028202147. The reversal of 2028202113 is 3112028202.

It is a happy number.

It is not a de Polignac number, because 2028202113 - 216 = 2028136577 is a prime.

It is a super-2 number, since 2×20282021132 = 8227207622355329538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2028202113.

It is not an unprimeable number, because it can be changed into a prime (2028212113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34243 + ... + 72311.

It is an arithmetic number, because the mean of its divisors is an integer number (100504800).

Almost surely, 22028202113 is an apocalyptic number.

It is an amenable number.

2028202113 is a deficient number, since it is larger than the sum of its proper divisors (1187951487).

2028202113 is a wasteful number, since it uses less digits than its factorization.

2028202113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38181.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2028202113 is about 45035.5649792472. The cubic root of 2028202113 is about 1265.8155027393.

The spelling of 2028202113 in words is "two billion, twenty-eight million, two hundred two thousand, one hundred thirteen".

Divisors: 1 3 7 21 43 59 129 177 301 413 903 1239 2537 7611 17759 38069 53277 114207 266483 799449 1636967 2246071 4910901 6738213 11458769 15722497 34376307 47167491 96581053 289743159 676067371 2028202113