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1220330147 is a prime number
BaseRepresentation
bin100100010111100…
…1100001010100011
310011001021012020212
41020233030022203
54444401031042
6321031524335
742145430561
oct11057141243
93131235225
101220330147
11576932113
122a08296ab
13165a91c5a
14b8102a31
1572204482
hex48bcc2a3

1220330147 has 2 divisors, whose sum is σ = 1220330148. Its totient is φ = 1220330146.

The previous prime is 1220330129. The next prime is 1220330171. The reversal of 1220330147 is 7410330221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220330147 - 220 = 1219281571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220330117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610165073 + 610165074.

It is an arithmetic number, because the mean of its divisors is an integer number (610165074).

Almost surely, 21220330147 is an apocalyptic number.

1220330147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220330147 is an equidigital number, since it uses as much as digits as its factorization.

1220330147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1220330147 is about 34933.2241140150. The cubic root of 1220330147 is about 1068.6261072167.

Adding to 1220330147 its reverse (7410330221), we get a palindrome (8630660368).

The spelling of 1220330147 in words is "one billion, two hundred twenty million, three hundred thirty thousand, one hundred forty-seven".