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1305450105401 = 13100419238877
BaseRepresentation
bin10010111111110010111…
…000111100101000111001
311121210121001200111022202
4102333302320330220321
5132342030211333101
62435414314155545
7163213161544451
oct22776270745071
94553531614282
101305450105401
11463702608032
12191008722bb5
139614628b990
1447281334d61
1523e5763b36b
hex12ff2e3ca39

1305450105401 has 4 divisors (see below), whose sum is σ = 1405869344292. Its totient is φ = 1205030866512.

The previous prime is 1305450105391. The next prime is 1305450105481. The reversal of 1305450105401 is 1045010545031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 162186620176 + 1143263485225 = 402724^2 + 1069235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305450105401 - 210 = 1305450104377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305450105481) 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, 50209619426 + ... + 50209619451.

It is an arithmetic number, because the mean of its divisors is an integer number (351467336073).

Almost surely, 21305450105401 is an apocalyptic number.

It is an amenable number.

1305450105401 is a deficient number, since it is larger than the sum of its proper divisors (100419238891).

1305450105401 is a wasteful number, since it uses less digits than its factorization.

1305450105401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100419238890.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 1305450105401 in words is "one trillion, three hundred five billion, four hundred fifty million, one hundred five thousand, four hundred one".

Divisors: 1 13 100419238877 1305450105401