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1220331302030 = 25127960890789
BaseRepresentation
bin10001110000100001011…
…010011110110010001110
311022122212222122021011202
4101300201122132302032
5124443214303131110
62332340142545502
7154110642630041
oct21604132366216
94278788567152
101220331302030
114305a322a245
12178612598292
138b0cc7ccc39
14430c8810c58
1521b24a9a0a5
hex11c2169ec8e

1220331302030 has 16 divisors (see below), whose sum is σ = 2213892380160. Its totient is φ = 484288957152.

The previous prime is 1220331302027. The next prime is 1220331302053. The reversal of 1220331302030 is 302031330221.

It is a junction number, because it is equal to n+sod(n) for n = 1220331301993 and 1220331302011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480444125 + ... + 480446664.

It is an arithmetic number, because the mean of its divisors is an integer number (138368273760).

Almost surely, 21220331302030 is an apocalyptic number.

1220331302030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220331302030 is a deficient number, since it is larger than the sum of its proper divisors (993561078130).

1220331302030 is a wasteful number, since it uses less digits than its factorization.

1220331302030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960890923.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1220331302030 its reverse (302031330221), we get a palindrome (1522362632251).

The spelling of 1220331302030 in words is "one trillion, two hundred twenty billion, three hundred thirty-one million, three hundred two thousand, thirty".

Divisors: 1 2 5 10 127 254 635 1270 960890789 1921781578 4804453945 9608907890 122033130203 244066260406 610165651015 1220331302030