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1361250353621 = 1780073550213
BaseRepresentation
bin10011110011110000110…
…110000000000111010101
311211010121212200210200202
4103303300312000013111
5134300320042303441
62521203315150245
7200230024044044
oct23636066000725
94733555623622
101361250353621
11485337378454
1219b99bba5385
139b4998c9132
1449c5611855b
152562130d19b
hex13cf0d801d5

1361250353621 has 4 divisors (see below), whose sum is σ = 1441323903852. Its totient is φ = 1281176803392.

The previous prime is 1361250353597. The next prime is 1361250353629. The reversal of 1361250353621 is 1263530521631.

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 1011957533521 + 349292820100 = 1005961^2 + 591010^2 .

It is not a de Polignac number, because 1361250353621 - 218 = 1361250091477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361250353629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40036775090 + ... + 40036775123.

It is an arithmetic number, because the mean of its divisors is an integer number (360330975963).

Almost surely, 21361250353621 is an apocalyptic number.

It is an amenable number.

1361250353621 is a deficient number, since it is larger than the sum of its proper divisors (80073550231).

1361250353621 is an equidigital number, since it uses as much as digits as its factorization.

1361250353621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80073550230.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 1361250353621 in words is "one trillion, three hundred sixty-one billion, two hundred fifty million, three hundred fifty-three thousand, six hundred twenty-one".

Divisors: 1 17 80073550213 1361250353621