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1230220033 = 7598933469
BaseRepresentation
bin100100101010011…
…1010101100000001
310011201212122121221
41021110322230001
510004414020113
6322023515041
742325461220
oct11124725401
93151778557
101230220033
11581477579
122a3bb8a81
13167b45663
14b9558cb7
157300998d
hex4953ab01

1230220033 has 16 divisors (see below), whose sum is σ = 1445904000. Its totient is φ = 1024924032.

The previous prime is 1230220009. The next prime is 1230220063. The reversal of 1230220033 is 3300220321.

It is a cyclic number.

It is not a de Polignac number, because 1230220033 - 217 = 1230088961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230219989 and 1230220016.

It is not an unprimeable number, because it can be changed into a prime (1230220063) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20023 + ... + 53491.

It is an arithmetic number, because the mean of its divisors is an integer number (90369000).

Almost surely, 21230220033 is an apocalyptic number.

It is an amenable number.

1230220033 is a deficient number, since it is larger than the sum of its proper divisors (215683967).

1230220033 is an equidigital number, since it uses as much as digits as its factorization.

1230220033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33624.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1230220033 is about 35074.4926264087. The cubic root of 1230220033 is about 1071.5051554307.

Adding to 1230220033 its reverse (3300220321), we get a palindrome (4530440354).

The spelling of 1230220033 in words is "one billion, two hundred thirty million, two hundred twenty thousand, thirty-three".

Divisors: 1 7 59 89 413 623 5251 33469 36757 234283 1974671 2978741 13822697 20851187 175745719 1230220033