Search a number
-
+
2112152205 = 35975872473
BaseRepresentation
bin111110111100100…
…1110001010001101
312110012101110010110
41331321032022031
513311202332310
6545330430233
7103224666102
oct17571161215
95405343113
102112152205
11994289239
124ab432379
13278784207
14160730aa9
15c5667d20
hex7de4e28d

2112152205 has 32 divisors (see below), whose sum is σ = 3421482624. Its totient is φ = 1112518656.

The previous prime is 2112152201. The next prime is 2112152209. The reversal of 2112152205 is 5022512112.

It is an interprime number because it is at equal distance from previous prime (2112152201) and next prime (2112152209).

It is not a de Polignac number, because 2112152205 - 22 = 2112152201 is a prime.

It is a super-2 number, since 2×21121522052 = 8922373874172724050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112152201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 852849 + ... + 855321.

It is an arithmetic number, because the mean of its divisors is an integer number (106921332).

Almost surely, 22112152205 is an apocalyptic number.

It is an amenable number.

2112152205 is a deficient number, since it is larger than the sum of its proper divisors (1309330419).

2112152205 is a wasteful number, since it uses less digits than its factorization.

2112152205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2112152205 is about 45958.1571105718. The cubic root of 2112152205 is about 1283.0445521395.

Adding to 2112152205 its reverse (5022512112), we get a palindrome (7134664317).

The spelling of 2112152205 in words is "two billion, one hundred twelve million, one hundred fifty-two thousand, two hundred five".

Divisors: 1 3 5 15 97 291 485 587 1455 1761 2473 2935 7419 8805 12365 37095 56939 170817 239881 284695 719643 854085 1199405 1451651 3598215 4354953 7258255 21774765 140810147 422430441 704050735 2112152205