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212252012 = 22772710427
BaseRepresentation
bin11001010011010…
…11010101101100
3112210101112000122
430221223111230
5413314031022
633021144112
75155053350
oct1451532554
9483345018
10212252012
11a98a1095
125b0bb038
1334c86c0b
1420291460
1513979742
hexca6b56c

212252012 has 24 divisors (see below), whose sum is σ = 425128704. Its totient is φ = 90831312.

The previous prime is 212252011. The next prime is 212252023. The reversal of 212252012 is 210252212.

It is not an unprimeable number, because it can be changed into a prime (212252011) 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, 15143 + ... + 25569.

It is an arithmetic number, because the mean of its divisors is an integer number (17713696).

Almost surely, 2212252012 is an apocalyptic number.

It is an amenable number.

212252012 is an abundant number, since it is smaller than the sum of its proper divisors (212876692).

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

212252012 is a wasteful number, since it uses less digits than its factorization.

212252012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11165 (or 11163 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 212252012 is about 14568.8713358311. The cubic root of 212252012 is about 596.5093726563.

The spelling of 212252012 in words is "two hundred twelve million, two hundred fifty-two thousand, twelve".

Divisors: 1 2 4 7 14 28 727 1454 2908 5089 10178 10427 20356 20854 41708 72989 145978 291956 7580429 15160858 30321716 53063003 106126006 212252012