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13940201 = 111267291
BaseRepresentation
bin110101001011…
…010111101001
3222020020100202
4311023113221
512032041301
61214441545
7226326662
oct65132751
928206322
1013940201
117961530
1248032b5
132b71152
141bcc369
15135566b
hexd4b5e9

13940201 has 4 divisors (see below), whose sum is σ = 15207504. Its totient is φ = 12672900.

The previous prime is 13940191. The next prime is 13940203. The reversal of 13940201 is 10204931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13940201 - 218 = 13678057 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13940203) 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, 633635 + ... + 633656.

It is an arithmetic number, because the mean of its divisors is an integer number (3801876).

Almost surely, 213940201 is an apocalyptic number.

13940201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13940201 is a deficient number, since it is larger than the sum of its proper divisors (1267303).

13940201 is a wasteful number, since it uses less digits than its factorization.

13940201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267302.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13940201 is about 3733.6578579190. The cubic root of 13940201 is about 240.6705840665.

It can be divided in two parts, 13940 and 201, that added together give a palindrome (14141).

The spelling of 13940201 in words is "thirteen million, nine hundred forty thousand, two hundred one".

Divisors: 1 11 1267291 13940201