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20102212000 = 2553132131227
BaseRepresentation
bin10010101110001011…
…110110100110100000
31220212221212011202101
4102232023312212200
5312132131241000
613122420100144
71311102661033
oct225613664640
956787764671
1020102212000
1185861a1452
123a90234654
131b84914200
14d89ad101a
157c9c0ae6a
hex4ae2f69a0

20102212000 has 288 divisors, whose sum is σ = 54128378304. Its totient is φ = 7333248000.

The previous prime is 20102211971. The next prime is 20102212049. The reversal of 20102212000 is 21220102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88555887 + ... + 88556113.

It is an arithmetic number, because the mean of its divisors is an integer number (187945758).

Almost surely, 220102212000 is an apocalyptic number.

20102212000 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 20102212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27064189152).

20102212000 is an abundant number, since it is smaller than the sum of its proper divisors (34026166304).

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

20102212000 is a wasteful number, since it uses less digits than its factorization.

20102212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20102212000 its reverse (21220102), we get a palindrome (20123432102).

The spelling of 20102212000 in words is "twenty billion, one hundred two million, two hundred twelve thousand".