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1220233033 = 7381120611
BaseRepresentation
bin100100010111011…
…0100011101001001
310011001002021001001
41020232310131021
54444334424113
6321025455001
742144544465
oct11056643511
93131067031
101220233033
11576876158
122a07a1461
13165a599a6
14b80b94a5
15721d57dd
hex48bb4749

1220233033 has 8 divisors (see below), whose sum is σ = 1238533856. Its totient is φ = 1201975200.

The previous prime is 1220232997. The next prime is 1220233037. The reversal of 1220233033 is 3303320221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1220233033 - 29 = 1220232521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220233033.

It is not an unprimeable number, because it can be changed into a prime (1220233037) 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, 48898 + ... + 69508.

It is an arithmetic number, because the mean of its divisors is an integer number (154816732).

Almost surely, 21220233033 is an apocalyptic number.

It is an amenable number.

1220233033 is a deficient number, since it is larger than the sum of its proper divisors (18300823).

1220233033 is an equidigital number, since it uses as much as digits as its factorization.

1220233033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21495.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 1220233033 is about 34931.8340915561. The cubic root of 1220233033 is about 1068.5977593391.

Adding to 1220233033 its reverse (3303320221), we get a palindrome (4523553254).

The spelling of 1220233033 in words is "one billion, two hundred twenty million, two hundred thirty-three thousand, thirty-three".

Divisors: 1 73 811 20611 59203 1504603 16715521 1220233033