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223010031 = 374336677
BaseRepresentation
bin11010100101011…
…01110011101111
3120112122002020210
431102231303233
5424042310111
634043513503
75345361006
oct1522556357
9515562223
10223010031
11104979812
1262828893
13372827ca
1421891c3d
15148a20a6
hexd4adcef

223010031 has 4 divisors (see below), whose sum is σ = 297346712. Its totient is φ = 148673352.

The previous prime is 223010017. The next prime is 223010033. The reversal of 223010031 is 130010322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 223010031 - 27 = 223009903 is a prime.

It is a super-2 number, since 2×2230100312 = 99466947853241922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223009989 and 223010016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223010033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37168336 + ... + 37168341.

It is an arithmetic number, because the mean of its divisors is an integer number (74336678).

Almost surely, 2223010031 is an apocalyptic number.

223010031 is a deficient number, since it is larger than the sum of its proper divisors (74336681).

223010031 is an equidigital number, since it uses as much as digits as its factorization.

223010031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74336680.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 223010031 is about 14933.5203820131. The cubic root of 223010031 is about 606.4217918791.

Adding to 223010031 its reverse (130010322), we get a palindrome (353020353).

The spelling of 223010031 in words is "two hundred twenty-three million, ten thousand, thirty-one".

Divisors: 1 3 74336677 223010031