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121346713 = 157772909
BaseRepresentation
bin1110011101110…
…01101010011001
322110100001101201
413032321222121
5222031043323
620012514201
73002300335
oct716715231
9273301351
10121346713
1162551644
123477b961
131c1a8bb7
141218a7c5
15a9be8ad
hex73b9a99

121346713 has 4 divisors (see below), whose sum is σ = 122119780. Its totient is φ = 120573648.

The previous prime is 121346699. The next prime is 121346723. The reversal of 121346713 is 317643121.

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 88134544 + 33212169 = 9388^2 + 5763^2 .

It is a cyclic number.

It is not a de Polignac number, because 121346713 - 217 = 121215641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121346723) 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, 386298 + ... + 386611.

It is an arithmetic number, because the mean of its divisors is an integer number (30529945).

Almost surely, 2121346713 is an apocalyptic number.

It is an amenable number.

121346713 is a deficient number, since it is larger than the sum of its proper divisors (773067).

121346713 is an equidigital number, since it uses as much as digits as its factorization.

121346713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773066.

The product of its digits is 3024, while the sum is 28.

The square root of 121346713 is about 11015.7484085286. The cubic root of 121346713 is about 495.0807105750.

Adding to 121346713 its reverse (317643121), we get a palindrome (438989834).

The spelling of 121346713 in words is "one hundred twenty-one million, three hundred forty-six thousand, seven hundred thirteen".

Divisors: 1 157 772909 121346713