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13747201 = 131057477
BaseRepresentation
bin110100011100…
…010000000001
3221212102121121
4310130100001
512004402301
61210352241
7224564206
oct64342001
927772547
1013747201
11783a526
12472b681
132b04350
141b7bcad
1513183a1
hexd1c401

13747201 has 4 divisors (see below), whose sum is σ = 14804692. Its totient is φ = 12689712.

The previous prime is 13747183. The next prime is 13747213. The reversal of 13747201 is 10274731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10274731 = 45722483.

It can be written as a sum of positive squares in 2 ways, for example, as 4626801 + 9120400 = 2151^2 + 3020^2 .

It is a cyclic number.

It is not a de Polignac number, because 13747201 - 211 = 13745153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13747231) 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, 528726 + ... + 528751.

It is an arithmetic number, because the mean of its divisors is an integer number (3701173).

Almost surely, 213747201 is an apocalyptic number.

It is an amenable number.

13747201 is a deficient number, since it is larger than the sum of its proper divisors (1057491).

13747201 is a wasteful number, since it uses less digits than its factorization.

13747201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057490.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 13747201 is about 3707.7218072558. The cubic root of 13747201 is about 239.5547357691.

The spelling of 13747201 in words is "thirteen million, seven hundred forty-seven thousand, two hundred one".

Divisors: 1 13 1057477 13747201