Search a number
-
+
120212120 = 2357429329
BaseRepresentation
bin1110010101001…
…00101010011000
322101012102000202
413022210222120
5221233241440
615532321332
72656533440
oct712445230
9271172022
10120212120
1161947166
1234313248
131bb9c642
1411d73120
15a848615
hex72a4a98

120212120 has 32 divisors (see below), whose sum is σ = 309117600. Its totient is φ = 41215488.

The previous prime is 120212089. The next prime is 120212129. The reversal of 120212120 is 21212021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214385 + ... + 214944.

It is an arithmetic number, because the mean of its divisors is an integer number (9659925).

Almost surely, 2120212120 is an apocalyptic number.

120212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120212120 is an abundant number, since it is smaller than the sum of its proper divisors (188905480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120212120 is a wasteful number, since it uses less digits than its factorization.

120212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429347 (or 429343 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 120212120 is about 10964.1287843586. The cubic root of 120212120 is about 493.5328731806.

Adding to 120212120 its reverse (21212021), we get a palindrome (141424141).

Subtracting from 120212120 its reverse (21212021), we obtain a palindrome (99000099).

It can be divided in two parts, 12021 and 2120, that added together give a palindrome (14141).

The spelling of 120212120 in words is "one hundred twenty million, two hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 429329 858658 1717316 2146645 3005303 3434632 4293290 6010606 8586580 12021212 15026515 17173160 24042424 30053030 60106060 120212120