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223101420 = 2235193159107
BaseRepresentation
bin11010100110001…
…00000111101100
3120112210201121120
431103010013230
5424103221140
634045500540
75346221313
oct1523040754
9515721546
10223101420
11104a31443
1262871750
13372b5299
14218b727a
15148be1d0
hexd4c41ec

223101420 has 192 divisors, whose sum is σ = 696729600. Its totient is φ = 53118720.

The previous prime is 223101419. The next prime is 223101457. The reversal of 223101420 is 24101322.

It is a super-3 number, since 3×2231014203 (a number of 26 digits) contains 333 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 223101420.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 2085007 + ... + 2085113.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2223101420 is an apocalyptic number.

223101420 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 223101420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348364800).

223101420 is an abundant number, since it is smaller than the sum of its proper divisors (473628180).

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

223101420 is a wasteful number, since it uses less digits than its factorization.

223101420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 223101420 is about 14936.5799298233. The cubic root of 223101420 is about 606.5046173201.

Adding to 223101420 its reverse (24101322), we get a palindrome (247202742).

The spelling of 223101420 in words is "two hundred twenty-three million, one hundred one thousand, four hundred twenty".