Search a number
-
+
12207955 = 5173141113
BaseRepresentation
bin101110100100…
…011101010011
3211222020011111
4232210131103
511111123310
61113354151
7205523464
oct56443523
924866144
1012207955
116989021
124108957
1326b5856
14189ad6b
15111228a
hexba4753

12207955 has 32 divisors (see below), whose sum is σ = 16547328. Its totient is φ = 8601600.

The previous prime is 12207941. The next prime is 12207959. The reversal of 12207955 is 55970221.

It is not a de Polignac number, because 12207955 - 219 = 11683667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 (12207959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107979 + ... + 108091.

It is an arithmetic number, because the mean of its divisors is an integer number (517104).

Almost surely, 212207955 is an apocalyptic number.

12207955 is a deficient number, since it is larger than the sum of its proper divisors (4339373).

12207955 is a wasteful number, since it uses less digits than its factorization.

12207955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 12207955 is about 3493.9884086814. The cubic root of 12207955 is about 230.2577765170.

The spelling of 12207955 in words is "twelve million, two hundred seven thousand, nine hundred fifty-five".

Divisors: 1 5 17 31 41 85 113 155 205 527 565 697 1271 1921 2635 3485 3503 4633 6355 9605 17515 21607 23165 59551 78761 108035 143623 297755 393805 718115 2441591 12207955