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1220330332 = 221323467891
BaseRepresentation
bin100100010111100…
…1100001101011100
310011001021012111201
41020233030031130
54444401032312
6321031525244
742145431244
oct11057141534
93131235451
101220330332
11576932271
122a0829824
13165a92070
14b8102b24
1572204557
hex48bcc35c

1220330332 has 12 divisors (see below), whose sum is σ = 2299853416. Its totient is φ = 563229360.

The previous prime is 1220330311. The next prime is 1220330339. The reversal of 1220330332 is 2330330221.

It is a happy number.

It is a super-2 number, since 2×12203303322 = 2978412238398460448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220330339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11733894 + ... + 11733997.

Almost surely, 21220330332 is an apocalyptic number.

It is an amenable number.

1220330332 is a deficient number, since it is larger than the sum of its proper divisors (1079523084).

1220330332 is a wasteful number, since it uses less digits than its factorization.

1220330332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23467908 (or 23467906 counting only the distinct ones).

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

The square root of 1220330332 is about 34933.2267619240. The cubic root of 1220330332 is about 1068.6261612173.

Adding to 1220330332 its reverse (2330330221), we get a palindrome (3550660553).

The spelling of 1220330332 in words is "one billion, two hundred twenty million, three hundred thirty thousand, three hundred thirty-two".

Divisors: 1 2 4 13 26 52 23467891 46935782 93871564 305082583 610165166 1220330332