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1305895307060 = 225281232365713
BaseRepresentation
bin10011000000001101011…
…011010000011100110100
311121211202002102002012002
4103000031123100130310
5132343433144311220
62435530420314432
7163230205650461
oct23001533203464
94554662362162
101305895307060
11463910946693
12191111842a18
13961b7598606
14472c4504668
1523e8177cc75
hex1300d6d0734

1305895307060 has 24 divisors (see below), whose sum is σ = 2752139516616. Its totient is φ = 520499194880.

The previous prime is 1305895307047. The next prime is 1305895307063. The reversal of 1305895307060 is 607035985031.

It can be written as a sum of positive squares in 4 ways, for example, as 52059723556 + 1253835583504 = 228166^2 + 1119748^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1305895306996 and 1305895307014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305895307063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116177237 + ... + 116188476.

It is an arithmetic number, because the mean of its divisors is an integer number (114672479859).

Almost surely, 21305895307060 is an apocalyptic number.

1305895307060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305895307060 is an abundant number, since it is smaller than the sum of its proper divisors (1446244209556).

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

1305895307060 is a wasteful number, since it uses less digits than its factorization.

1305895307060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232366003 (or 232366001 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 1305895307060 in words is "one trillion, three hundred five billion, eight hundred ninety-five million, three hundred seven thousand, sixty".

Divisors: 1 2 4 5 10 20 281 562 1124 1405 2810 5620 232365713 464731426 929462852 1161828565 2323657130 4647314260 65294765353 130589530706 261179061412 326473826765 652947653530 1305895307060