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13701213 = 321522357
BaseRepresentation
bin110100010001…
…000001011101
3221210002112100
4310101001131
512001414323
61205355313
7224313141
oct64210135
927702470
1013701213
117808a19
124708b39
132ab9436
141b69221
151309943
hexd1105d

13701213 has 6 divisors (see below), whose sum is σ = 19790654. Its totient is φ = 9134136.

The previous prime is 13701209. The next prime is 13701221. The reversal of 13701213 is 31210731.

13701213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12830724 + 870489 = 3582^2 + 933^2 .

It is not a de Polignac number, because 13701213 - 22 = 13701209 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 (13701113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 761170 + ... + 761187.

Almost surely, 213701213 is an apocalyptic number.

It is an amenable number.

13701213 is a deficient number, since it is larger than the sum of its proper divisors (6089441).

13701213 is a wasteful number, since it uses less digits than its factorization.

13701213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522363 (or 1522360 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 13701213 is about 3701.5149601211. The cubic root of 13701213 is about 239.2873128324.

Adding to 13701213 its reverse (31210731), we get a palindrome (44911944).

The spelling of 13701213 in words is "thirteen million, seven hundred one thousand, two hundred thirteen".

Divisors: 1 3 9 1522357 4567071 13701213