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13234998149 = 50926001961
BaseRepresentation
bin11000101001101111…
…00000101110000101
31021011100222120022122
430110313200232011
5204101124420044
610025143535325
7645655425302
oct142467405605
937140876278
1013234998149
1156818a1aaa
12269445a545
13132bc90c69
148d7a5c0a9
15526dc0dee
hex314de0b85

13234998149 has 4 divisors (see below), whose sum is σ = 13261000620. Its totient is φ = 13208995680.

The previous prime is 13234998121. The next prime is 13234998187. The reversal of 13234998149 is 94189943231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94189943231 = 114487822713.

It can be written as a sum of positive squares in 2 ways, for example, as 5872156900 + 7362841249 = 76630^2 + 85807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13234998149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13234998149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13234998349) 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, 13000472 + ... + 13001489.

It is an arithmetic number, because the mean of its divisors is an integer number (3315250155).

Almost surely, 213234998149 is an apocalyptic number.

It is an amenable number.

13234998149 is a deficient number, since it is larger than the sum of its proper divisors (26002471).

13234998149 is an equidigital number, since it uses as much as digits as its factorization.

13234998149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26002470.

The product of its digits is 1679616, while the sum is 53.

The spelling of 13234998149 in words is "thirteen billion, two hundred thirty-four million, nine hundred ninety-eight thousand, one hundred forty-nine".

Divisors: 1 509 26001961 13234998149