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1204213225 = 5248168529
BaseRepresentation
bin100011111000110…
…1101010111101001
310002220221100222211
41013301231113221
54431234310400
6315254245121
741561433505
oct10761552751
93086840884
101204213225
11568824246
122973567a1
1316263b107
14b5d09305
1570abddba
hex47c6d5e9

1204213225 has 6 divisors (see below), whose sum is σ = 1493224430. Its totient is φ = 963370560.

The previous prime is 1204213189. The next prime is 1204213229. The reversal of 1204213225 is 5223124021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 53824 + 1204159401 = 232^2 + 34701^2 .

It is not a de Polignac number, because 1204213225 - 215 = 1204180457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1204213196 and 1204213205.

It is not an unprimeable number, because it can be changed into a prime (1204213229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24084240 + ... + 24084289.

Almost surely, 21204213225 is an apocalyptic number.

It is an amenable number.

1204213225 is a deficient number, since it is larger than the sum of its proper divisors (289011205).

1204213225 is an equidigital number, since it uses as much as digits as its factorization.

1204213225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48168539 (or 48168534 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1204213225 is about 34701.7755309437. The cubic root of 1204213225 is about 1063.9007886205.

Adding to 1204213225 its reverse (5223124021), we get a palindrome (6427337246).

The spelling of 1204213225 in words is "one billion, two hundred four million, two hundred thirteen thousand, two hundred twenty-five".

Divisors: 1 5 25 48168529 240842645 1204213225