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202021012013100 = 2235271571943331531
BaseRepresentation
bin101101111011110010101110…
…101010001000000000101100
3222111022000112200021202202220
4231323302232222020000230
5202434403013033404400
61553355101030515340
760360352002063150
oct5573625652100054
9874260480252686
10202021012013100
11594086a2671615
121a7a9038205b50
138895665a82ca7
1437c5c24d53060
15185506ba8d7a0
hexb7bcaea8802c

202021012013100 has 288 divisors, whose sum is σ = 672326942654976. Its totient is φ = 45878299084800.

The previous prime is 202021012013089. The next prime is 202021012013203. The reversal of 202021012013100 is 1310210120202.

It is a super-2 number, since 2×2020210120131002 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202021012013100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6407044335 + ... + 6407075865.

Almost surely, 2202021012013100 is an apocalyptic number.

202021012013100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202021012013100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336163471327488).

202021012013100 is an abundant number, since it is smaller than the sum of its proper divisors (470305930641876).

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

202021012013100 is a wasteful number, since it uses less digits than its factorization.

202021012013100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51145 (or 51138 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 202021012013100 its reverse (1310210120202), we get a palindrome (203331222133302).

The spelling of 202021012013100 in words is "two hundred two trillion, twenty-one billion, twelve million, thirteen thousand, one hundred".