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212530010 = 257111973199
BaseRepresentation
bin11001010101011…
…11001101011010
3112210220122100212
430222233031122
5413401430020
633031131122
75160322010
oct1452571532
9483818325
10212530010
11a9a70a40
125b213aa2
1335053604
14203248b0
15139d1cc5
hexcaaf35a

212530010 has 128 divisors (see below), whose sum is σ = 511488000. Its totient is φ = 61585920.

The previous prime is 212529973. The next prime is 212530013. The reversal of 212530010 is 10035212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212530013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1067891 + ... + 1068089.

It is an arithmetic number, because the mean of its divisors is an integer number (3996000).

Almost surely, 2212530010 is an apocalyptic number.

212530010 is an abundant number, since it is smaller than the sum of its proper divisors (298957990).

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

212530010 is a wasteful number, since it uses less digits than its factorization.

212530010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 212530010 is about 14578.4090352823. The cubic root of 212530010 is about 596.7696859595.

Adding to 212530010 its reverse (10035212), we get a palindrome (222565222).

The spelling of 212530010 in words is "two hundred twelve million, five hundred thirty thousand, ten".

Divisors: 1 2 5 7 10 11 14 19 22 35 38 55 70 73 77 95 110 133 146 154 190 199 209 266 365 385 398 418 511 665 730 770 803 995 1022 1045 1330 1387 1393 1463 1606 1990 2090 2189 2555 2774 2786 2926 3781 4015 4378 5110 5621 6935 6965 7315 7562 8030 9709 10945 11242 13870 13930 14527 14630 15257 15323 18905 19418 21890 26467 28105 29054 30514 30646 37810 41591 48545 52934 56210 72635 76285 76615 83182 97090 101689 106799 132335 145270 152570 153230 159797 203378 207955 213598 264670 276013 291137 319594 415910 508445 533995 552026 582274 798985 1016890 1067990 1118579 1380065 1455685 1597970 1932091 2237158 2760130 2911370 3036143 3864182 5592895 6072286 9660455 11185790 15180715 19320910 21253001 30361430 42506002 106265005 212530010