Search a number
-
+
2000122420 = 225175999707
BaseRepresentation
bin111011100110111…
…0111001000110100
312011101120202011011
41313031313020310
513044012404140
6530245322004
7100364521462
oct16715671064
95141522134
102000122420
1193702063a
12479a06304
1325b4bacba
1414d8cb832
15ba8d8cea
hex77377234

2000122420 has 48 divisors (see below), whose sum is σ = 4522754880. Its totient is φ = 740217344.

The previous prime is 2000122349. The next prime is 2000122429. The reversal of 2000122420 is 242210002.

It is a self number, because there is not a number n which added to its sum of digits gives 2000122420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000122429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29794 + ... + 69913.

It is an arithmetic number, because the mean of its divisors is an integer number (94224060).

Almost surely, 22000122420 is an apocalyptic number.

2000122420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000122420 is an abundant number, since it is smaller than the sum of its proper divisors (2522632460).

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

2000122420 is a wasteful number, since it uses less digits than its factorization.

2000122420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99792 (or 99790 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2000122420 is about 44722.7282262610. The cubic root of 2000122420 is about 1259.9467559595.

Adding to 2000122420 its reverse (242210002), we get a palindrome (2242332422).

The spelling of 2000122420 in words is "two billion, one hundred twenty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 59 68 85 118 170 236 295 340 590 1003 1180 2006 4012 5015 10030 20060 99707 199414 398828 498535 997070 1695019 1994140 3390038 5882713 6780076 8475095 11765426 16950190 23530852 29413565 33900380 58827130 100006121 117654260 200012242 400024484 500030605 1000061210 2000122420