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1220330300 = 2252723753127
BaseRepresentation
bin100100010111100…
…1100001100111100
310011001021012110112
41020233030030330
54444401032200
6321031525152
742145431200
oct11057141474
93131235415
101220330300
11576932242
122a08297b8
13165a92047
14b8102b00
1572204535
hex48bcc33c

1220330300 has 216 divisors, whose sum is σ = 3248792064. Its totient is φ = 396264960.

The previous prime is 1220330213. The next prime is 1220330311. The reversal of 1220330300 is 30330221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9608837 + ... + 9608963.

It is an arithmetic number, because the mean of its divisors is an integer number (15040704).

Almost surely, 21220330300 is an apocalyptic number.

1220330300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220330300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624396032).

1220330300 is an abundant number, since it is smaller than the sum of its proper divisors (2028461764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220330300 is a wasteful number, since it uses less digits than its factorization.

1220330300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 1220330300 is about 34933.2263039073. The cubic root of 1220330300 is about 1068.6261518767.

Adding to 1220330300 its reverse (30330221), we get a palindrome (1250660521).

The spelling of 1220330300 in words is "one billion, two hundred twenty million, three hundred thirty thousand, three hundred".