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223011427 = 2331312779
BaseRepresentation
bin11010100101011…
…10001001100011
3120112122011011111
431102232021203
5424042331202
634043524151
75345365042
oct1522561143
9515564144
10223011427
1110497a871
1262829657
1337283332
1421892559
15148a26d7
hexd4ae263

223011427 has 8 divisors (see below), whose sum is σ = 240215040. Its totient is φ = 206433480.

The previous prime is 223011413. The next prime is 223011487. The reversal of 223011427 is 724110322.

223011427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-223011427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223011398 and 223011407.

It is not an unprimeable number, because it can be changed into a prime (223011407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155677 + ... + 157102.

It is an arithmetic number, because the mean of its divisors is an integer number (30026880).

Almost surely, 2223011427 is an apocalyptic number.

223011427 is a deficient number, since it is larger than the sum of its proper divisors (17203613).

223011427 is a wasteful number, since it uses less digits than its factorization.

223011427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312833.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 223011427 is about 14933.5671224259. The cubic root of 223011427 is about 606.4230572378.

Adding to 223011427 its reverse (724110322), we get a palindrome (947121749).

The spelling of 223011427 in words is "two hundred twenty-three million, eleven thousand, four hundred twenty-seven".

Divisors: 1 23 31 713 312779 7193917 9696149 223011427