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1220201330 = 25122020133
BaseRepresentation
bin100100010111010…
…1100101101110010
310011001000122112212
41020232230231302
54444332420310
6321025052122
742144353165
oct11056545562
93131018485
101220201330
11576854357
122a0787042
13165a4842a
14b80abadc
15721cb205
hex48bacb72

1220201330 has 8 divisors (see below), whose sum is σ = 2196362412. Its totient is φ = 488080528.

The previous prime is 1220201327. The next prime is 1220201341. The reversal of 1220201330 is 331020221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1220174761 + 26569 = 34931^2 + 163^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61010057 + ... + 61010076.

Almost surely, 21220201330 is an apocalyptic number.

1220201330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220201330 is a deficient number, since it is larger than the sum of its proper divisors (976161082).

1220201330 is a wasteful number, since it uses less digits than its factorization.

1220201330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122020140.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1220201330 is about 34931.3803048205. The cubic root of 1220201330 is about 1068.5885048095.

Adding to 1220201330 its reverse (331020221), we get a palindrome (1551221551).

The spelling of 1220201330 in words is "one billion, two hundred twenty million, two hundred one thousand, three hundred thirty".

Divisors: 1 2 5 10 122020133 244040266 610100665 1220201330