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1303102221220 = 22565155111061
BaseRepresentation
bin10010111101100110111…
…100011110101110100100
311121120112102201121201101
4102331212330132232210
5132322223132034340
62434345323005444
7163101042060202
oct22754674365644
94546472647641
101303102221220
11462708260988
12190672369884
1395b60a1c4b7
14470db5a0072
1523d6b45bc9a
hex12f66f1eba4

1303102221220 has 12 divisors (see below), whose sum is σ = 2736514664604. Its totient is φ = 521240888480.

The previous prime is 1303102221191. The next prime is 1303102221233. The reversal of 1303102221220 is 221222013031.

It can be written as a sum of positive squares in 2 ways, for example, as 243672551424 + 1059429669796 = 493632^2 + 1029286^2 .

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, 32577555511 + ... + 32577555550.

It is an arithmetic number, because the mean of its divisors is an integer number (228042888717).

Almost surely, 21303102221220 is an apocalyptic number.

1303102221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303102221220 is an abundant number, since it is smaller than the sum of its proper divisors (1433412443384).

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

1303102221220 is a wasteful number, since it uses less digits than its factorization.

1303102221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65155111070 (or 65155111068 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1303102221220 its reverse (221222013031), we get a palindrome (1524324234251).

The spelling of 1303102221220 in words is "one trillion, three hundred three billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 65155111061 130310222122 260620444244 325775555305 651551110610 1303102221220