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30233426 = 253285221
BaseRepresentation
bin111001101010…
…1001101010010
32002220000110112
41303111031102
530214432201
63000001322
7514660046
oct163251522
962800415
1030233426
111607a903
12a160242
136357302
144030026
1529c30bb
hex1cd5352

30233426 has 8 divisors (see below), whose sum is σ = 46205964. Its totient is φ = 14831440.

The previous prime is 30233419. The next prime is 30233443. The reversal of 30233426 is 62433203.

It can be written as a sum of positive squares in 2 ways, for example, as 28633201 + 1600225 = 5351^2 + 1265^2 .

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

It is a super-3 number, since 3×302334263 (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 142505 + ... + 142716.

Almost surely, 230233426 is an apocalyptic number.

30233426 is a deficient number, since it is larger than the sum of its proper divisors (15972538).

30233426 is a wasteful number, since it uses less digits than its factorization.

30233426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285276.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 30233426 is about 5498.4930662864. The cubic root of 30233426 is about 311.5270681149.

Adding to 30233426 its reverse (62433203), we get a palindrome (92666629).

The spelling of 30233426 in words is "thirty million, two hundred thirty-three thousand, four hundred twenty-six".

Divisors: 1 2 53 106 285221 570442 15116713 30233426