Search a number
-
+
2120312 = 231072477
BaseRepresentation
bin1000000101101001111000
310222201112002
420011221320
51020322222
6113240132
724010445
oct10055170
93881462
102120312
111219027
12863048
1359312c
143d29cc
152bd392
hex205a78

2120312 has 16 divisors (see below), whose sum is σ = 4014360. Its totient is φ = 1049824.

The previous prime is 2120309. The next prime is 2120317. The reversal of 2120312 is 2130212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2120293 and 2120302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383 + ... + 2094.

22120312 is an apocalyptic number.

It is an amenable number.

2120312 is a deficient number, since it is larger than the sum of its proper divisors (1894048).

2120312 is a wasteful number, since it uses less digits than its factorization.

2120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590 (or 2586 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2120312 is about 1456.1291151543. The cubic root of 2120312 is about 128.4694674287.

Adding to 2120312 its reverse (2130212), we get a palindrome (4250524).

The spelling of 2120312 in words is "two million, one hundred twenty thousand, three hundred twelve".

Divisors: 1 2 4 8 107 214 428 856 2477 4954 9908 19816 265039 530078 1060156 2120312