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122203020 = 22356173301
BaseRepresentation
bin1110100100010…
…10101110001100
322111221120000210
413102022232030
5222240444040
620043122420
73012465012
oct722125614
9274846023
10122203020
1162a86a35
1234b13410
131c4188a4
14123308b2
15aadd480
hex748ab8c

122203020 has 48 divisors (see below), whose sum is σ = 342826848. Its totient is φ = 32524800.

The previous prime is 122202973. The next prime is 122203027. The reversal of 122203020 is 20302221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 122202987 and 122203005.

It is not an unprimeable number, because it can be changed into a prime (122203027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35370 + ... + 38670.

It is an arithmetic number, because the mean of its divisors is an integer number (7142226).

Almost surely, 2122203020 is an apocalyptic number.

122203020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122203020 is an abundant number, since it is smaller than the sum of its proper divisors (220623828).

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

122203020 is a wasteful number, since it uses less digits than its factorization.

122203020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930 (or 3928 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 122203020 is about 11054.5474805620. The cubic root of 122203020 is about 496.2425268582.

Adding to 122203020 its reverse (20302221), we get a palindrome (142505241).

The spelling of 122203020 in words is "one hundred twenty-two million, two hundred three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 617 1234 1851 2468 3085 3301 3702 6170 6602 7404 9255 9903 12340 13204 16505 18510 19806 33010 37020 39612 49515 66020 99030 198060 2036717 4073434 6110151 8146868 10183585 12220302 20367170 24440604 30550755 40734340 61101510 122203020