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1361314887 = 3453771629
BaseRepresentation
bin101000100100100…
…0000010001000111
310111212112221221220
41101021000101013
510241444034022
6343025411423
745506662032
oct12111002107
93455487856
101361314887
11639477029
1231ba99b73
1318905558a
14ccb22019
157e7a285c
hex51240447

1361314887 has 4 divisors (see below), whose sum is σ = 1815086520. Its totient is φ = 907543256.

The previous prime is 1361314837. The next prime is 1361314921. The reversal of 1361314887 is 7884131631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7884131631 = 32628043877.

It is a cyclic number.

It is not a de Polignac number, because 1361314887 - 215 = 1361282119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361314837) 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, 226885812 + ... + 226885817.

It is an arithmetic number, because the mean of its divisors is an integer number (453771630).

Almost surely, 21361314887 is an apocalyptic number.

1361314887 is a deficient number, since it is larger than the sum of its proper divisors (453771633).

1361314887 is an equidigital number, since it uses as much as digits as its factorization.

1361314887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453771632.

The product of its digits is 96768, while the sum is 42.

The square root of 1361314887 is about 36896.0009621639. Note that the first 3 decimals coincide. The cubic root of 1361314887 is about 1108.2885963714.

The spelling of 1361314887 in words is "one billion, three hundred sixty-one million, three hundred fourteen thousand, eight hundred eighty-seven".

Divisors: 1 3 453771629 1361314887