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210115067120 = 2457463810379
BaseRepresentation
bin1100001110101111010…
…1010111110011110000
3202002100021120100000222
43003223311113303300
511420303424121440
6240305303032212
721115563413420
oct3035365276360
9662307510028
10210115067120
1181122528902
123487b13b668
1316a76ac71aa
14a253638480
1556eb4b12b5
hex30ebd57cf0

210115067120 has 80 divisors (see below), whose sum is σ = 559512284160. Its totient is φ = 71883770112.

The previous prime is 210115067111. The next prime is 210115067159. The reversal of 210115067120 is 21760511012.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 210115067120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145910 + ... + 664469.

It is an arithmetic number, because the mean of its divisors is an integer number (6993903552).

Almost surely, 2210115067120 is an apocalyptic number.

210115067120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210115067120 is an abundant number, since it is smaller than the sum of its proper divisors (349397217040).

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

210115067120 is a wasteful number, since it uses less digits than its factorization.

210115067120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810862 (or 810856 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 26.

Adding to 210115067120 its reverse (21760511012), we get a palindrome (231875578132).

The spelling of 210115067120 in words is "two hundred ten billion, one hundred fifteen million, sixty-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 463 560 926 1852 2315 3241 3704 4630 6482 7408 9260 12964 16205 18520 25928 32410 37040 51856 64820 129640 259280 810379 1620758 3241516 4051895 5672653 6483032 8103790 11345306 12966064 16207580 22690612 28363265 32415160 45381224 56726530 64830320 90762448 113453060 226906120 375205477 453812240 750410954 1500821908 1876027385 2626438339 3001643816 3752054770 5252876678 6003287632 7504109540 10505753356 13132191695 15008219080 21011506712 26264383390 30016438160 42023013424 52528766780 105057533560 210115067120