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223532401 = 149512
BaseRepresentation
bin11010101001011…
…01010101110001
3120120121121210211
431110231111301
5424211014101
634103024121
75352664651
oct1524552561
9516547724
10223532401
111051a6224
1262a3b041
13374064c1
142198a361
1514956c51
hexd52d571

223532401 has 3 divisors (see below), whose sum is σ = 223547353. Its totient is φ = 223517450.

The previous prime is 223532383. The next prime is 223532411. The reversal of 223532401 is 104235322.

The square root of 223532401 is 14951.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 104235322 = 252117661.

It is not a de Polignac number, because 223532401 - 27 = 223532273 is a prime.

It is a super-3 number, since 3×2235324013 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223532411) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7476 + ... + 22426.

Almost surely, 2223532401 is an apocalyptic number.

223532401 is the 14951-st square number.

223532401 is the 7476-th centered octagonal number.

It is an amenable number.

223532401 is a deficient number, since it is larger than the sum of its proper divisors (14952).

223532401 is an frugal number, since it uses more digits than its factorization.

223532401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29902 (or 14951 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The cubic root of 223532401 is about 606.8949089198.

Adding to 223532401 its reverse (104235322), we get a palindrome (327767723).

The spelling of 223532401 in words is "two hundred twenty-three million, five hundred thirty-two thousand, four hundred one".

Divisors: 1 14951 223532401