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210131451306 = 23272967858317
BaseRepresentation
bin1100001110110011001…
…1110111110110101010
3202002101102101201220200
43003230303313312222
511420322122420211
6240311050133030
721116152602630
oct3035463676652
9662342351820
10210131451306
11811307a9557
1234884721176
1316a7a31288a
14a2558a1350
1556ecb4ab56
hex30eccf7daa

210131451306 has 96 divisors (see below), whose sum is σ = 546302240640. Its totient is φ = 57102046848.

The previous prime is 210131451289. The next prime is 210131451329. The reversal of 210131451306 is 603154131012.

It is a happy number.

210131451306 is a `hidden beast` number, since 2 + 10 + 131 + 4 + 513 + 0 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210131451306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184341 + ... + 673976.

It is an arithmetic number, because the mean of its divisors is an integer number (5690648340).

Almost surely, 2210131451306 is an apocalyptic number.

210131451306 is an abundant number, since it is smaller than the sum of its proper divisors (336170789334).

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

210131451306 is a wasteful number, since it uses less digits than its factorization.

210131451306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858428 (or 858425 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 210131451306 its reverse (603154131012), we get a palindrome (813285582318).

The spelling of 210131451306 in words is "two hundred ten billion, one hundred thirty-one million, four hundred fifty-one thousand, three hundred six".

Divisors: 1 2 3 6 7 9 14 18 21 29 42 58 63 67 87 126 134 174 201 203 261 402 406 469 522 603 609 938 1206 1218 1407 1827 1943 2814 3654 3886 4221 5829 8442 11658 13601 17487 27202 34974 40803 81606 122409 244818 858317 1716634 2574951 5149902 6008219 7724853 12016438 15449706 18024657 24891193 36049314 49782386 54073971 57507239 74673579 108147942 115014478 149347158 172521717 174238351 224020737 345043434 348476702 402550673 448041474 517565151 522715053 805101346 1035130302 1045430106 1207652019 1568145159 1667709931 2415304038 3136290318 3335419862 3622956057 5003129793 7245912114 10006259586 11673969517 15009389379 23347939034 30018778758 35021908551 70043817102 105065725653 210131451306