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200000000420 = 22511909090911
BaseRepresentation
bin1011101001000011101…
…1011101000110100100
3201010020100021201001222
42322100323131012210
511234100000003140
6231513450035512
720310120645143
oct2722073350644
9633210251058
10200000000420
1177901871550
1232917718b98
1315b2431c41c
1499740c175a
1553084745b5
hex2e90edd1a4

200000000420 has 24 divisors (see below), whose sum is σ = 458181819648. Its totient is φ = 72727272800.

The previous prime is 200000000407. The next prime is 200000000423. The reversal of 200000000420 is 24000000002.

200000000420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 200000000398 and 200000000407.

It is not an unprimeable number, because it can be changed into a prime (200000000423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454545236 + ... + 454545675.

It is an arithmetic number, because the mean of its divisors is an integer number (19090909152).

Almost surely, 2200000000420 is an apocalyptic number.

200000000420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200000000420 is an abundant number, since it is smaller than the sum of its proper divisors (258181819228).

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

200000000420 is a wasteful number, since it uses less digits than its factorization.

200000000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909090931 (or 909090929 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 200000000420 its reverse (24000000002), we get a palindrome (224000000422).

The spelling of 200000000420 in words is "two hundred billion, four hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 909090911 1818181822 3636363644 4545454555 9090909110 10000000021 18181818220 20000000042 40000000084 50000000105 100000000210 200000000420