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1225030433 = 11111366403
BaseRepresentation
bin100100100000100…
…0111101100100001
310011101002222211112
41021001013230201
510002101433213
6321320353105
742233405204
oct11101075441
93141088745
101225030433
11579552550
122a2315795
13166a494a3
14b89a793b
1572831ea8
hex49047b21

1225030433 has 4 divisors (see below), whose sum is σ = 1336396848. Its totient is φ = 1113664020.

The previous prime is 1225030423. The next prime is 1225030451. The reversal of 1225030433 is 3340305221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3340305221 = 11303664111.

It is a cyclic number.

It is not a de Polignac number, because 1225030433 - 26 = 1225030369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1225030399 and 1225030408.

It is not an unprimeable number, because it can be changed into a prime (1225030403) 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, 55683191 + ... + 55683212.

It is an arithmetic number, because the mean of its divisors is an integer number (334099212).

Almost surely, 21225030433 is an apocalyptic number.

It is an amenable number.

1225030433 is a deficient number, since it is larger than the sum of its proper divisors (111366415).

1225030433 is a wasteful number, since it uses less digits than its factorization.

1225030433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111366414.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1225030433 is about 35000.4347544427. The cubic root of 1225030433 is about 1069.9963411527.

Adding to 1225030433 its reverse (3340305221), we get a palindrome (4565335654).

The spelling of 1225030433 in words is "one billion, two hundred twenty-five million, thirty thousand, four hundred thirty-three".

Divisors: 1 11 111366403 1225030433