Search a number
-
+
13054213221 = 372396134243
BaseRepresentation
bin11000010100001011…
…10111110001100101
31020200202210202000120
430022011313301211
5203213334310341
65555205032153
7641331660450
oct141205676145
936622722016
1013054213221
115599843675
1226439b5659
1313006a3a2a
148bba3c497
155160b0066
hex30a177c65

13054213221 has 32 divisors (see below), whose sum is σ = 20012666880. Its totient is φ = 7414473024.

The previous prime is 13054213213. The next prime is 13054213253. The reversal of 13054213221 is 12231245031.

13054213221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13054213221 - 23 = 13054213213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13054213191 and 13054213200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13054213261) 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 31 ways as a sum of consecutive naturals, for example, 3074526 + ... + 3078768.

It is an arithmetic number, because the mean of its divisors is an integer number (625395840).

Almost surely, 213054213221 is an apocalyptic number.

It is an amenable number.

13054213221 is a deficient number, since it is larger than the sum of its proper divisors (6958453659).

13054213221 is a wasteful number, since it uses less digits than its factorization.

13054213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5105.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 13054213221 its reverse (12231245031), we get a palindrome (25285458252).

The spelling of 13054213221 in words is "thirteen billion, fifty-four million, two hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 3 7 21 239 613 717 1673 1839 4243 4291 5019 12729 12873 29701 89103 146507 439521 1014077 1025549 2600959 3042231 3076647 7098539 7802877 18206713 21295617 54620139 621629201 1864887603 4351404407 13054213221