Search a number
-
+
212463130 = 251119591723
BaseRepresentation
bin11001010100111…
…10111000011010
3112210210020121211
430222132320122
5413342310010
633025453334
75156623015
oct1452367032
9483706554
10212463130
11a9a25770
125b1a124a
133502c039
142030837c
15139bc08a
hexca9ee1a

212463130 has 64 divisors (see below), whose sum is σ = 446860800. Its totient is φ = 71910720.

The previous prime is 212463109. The next prime is 212463131. The reversal of 212463130 is 31364212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (212463131) 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, 122449 + ... + 124171.

It is an arithmetic number, because the mean of its divisors is an integer number (6982200).

Almost surely, 2212463130 is an apocalyptic number.

212463130 is an abundant number, since it is smaller than the sum of its proper divisors (234397670).

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

212463130 is a wasteful number, since it uses less digits than its factorization.

212463130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 212463130 is about 14576.1150516864. The cubic root of 212463130 is about 596.7070812417.

The spelling of 212463130 in words is "two hundred twelve million, four hundred sixty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 11 19 22 38 55 59 95 110 118 190 209 295 418 590 649 1045 1121 1298 1723 2090 2242 3245 3446 5605 6490 8615 11210 12331 17230 18953 24662 32737 37906 61655 65474 94765 101657 123310 163685 189530 203314 327370 360107 508285 720214 1016570 1118227 1800535 1931483 2236454 3601070 3862966 5591135 9657415 11182270 19314830 21246313 42492626 106231565 212463130