Search a number
-
+
118212007 is a prime number
BaseRepresentation
bin1110000101111…
…00010110100111
322020102210101111
413002330112213
5220230241012
615421405451
72633533264
oct702742647
9266383344
10118212007
1160800481
1233709887
131b64c144
14119b226b
15a5a0ba7
hex70bc5a7

118212007 has 2 divisors, whose sum is σ = 118212008. Its totient is φ = 118212006.

The previous prime is 118211969. The next prime is 118212013. The reversal of 118212007 is 700212811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-118212007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118212607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59106003 + 59106004.

It is an arithmetic number, because the mean of its divisors is an integer number (59106004).

Almost surely, 2118212007 is an apocalyptic number.

118212007 is a deficient number, since it is larger than the sum of its proper divisors (1).

118212007 is an equidigital number, since it uses as much as digits as its factorization.

118212007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 118212007 is about 10872.5345251234. The cubic root of 118212007 is about 490.7803849698.

Adding to 118212007 its reverse (700212811), we get a palindrome (818424818).

The spelling of 118212007 in words is "one hundred eighteen million, two hundred twelve thousand, seven".