Search a number
-
+
13545207 = 3213115771
BaseRepresentation
bin110011101010…
…111011110111
3221111011112100
4303222323313
511431421312
61202153143
7223063254
oct63527367
927434470
1013545207
117711795
1246527b3
132a63420
141b2842b
1512c85dc
hexceaef7

13545207 has 12 divisors (see below), whose sum is σ = 21070504. Its totient is φ = 8335440.

The previous prime is 13545199. The next prime is 13545227. The reversal of 13545207 is 70254531.

It is a happy number.

13545207 is a `hidden beast` number, since 135 + 4 + 520 + 7 = 666.

It is not a de Polignac number, because 13545207 - 23 = 13545199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13545227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57769 + ... + 58002.

Almost surely, 213545207 is an apocalyptic number.

13545207 is a deficient number, since it is larger than the sum of its proper divisors (7525297).

13545207 is a wasteful number, since it uses less digits than its factorization.

13545207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115790 (or 115787 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 13545207 is about 3680.3813661087. The cubic root of 13545207 is about 238.3756455216.

Adding to 13545207 its reverse (70254531), we get a palindrome (83799738).

It can be divided in two parts, 1354 and 5207, that added together give a 8-th power (6561 = 38).

The spelling of 13545207 in words is "thirteen million, five hundred forty-five thousand, two hundred seven".

Divisors: 1 3 9 13 39 117 115771 347313 1041939 1505023 4515069 13545207