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213460000 = 255413821
BaseRepresentation
bin11001011100100…
…10010000100000
3112212122220001221
430232102100200
5414121210000
633103104424
75201244235
oct1456222040
9485586057
10213460000
11aa546726
125b5a2114
13352ba9c0
14204c778c
1513b1761a
hexcb92420

213460000 has 120 divisors (see below), whose sum is σ = 566228124. Its totient is φ = 78720000.

The previous prime is 213459989. The next prime is 213460019. The reversal of 213460000 is 64312.

It can be written as a sum of positive squares in 10 ways, for example, as 67436944 + 146023056 = 8212^2 + 12084^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 259590 + ... + 260410.

Almost surely, 2213460000 is an apocalyptic number.

213460000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213460000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283114062).

213460000 is an abundant number, since it is smaller than the sum of its proper divisors (352768124).

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

213460000 is an equidigital number, since it uses as much as digits as its factorization.

213460000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213460000 is about 14610.2703602637. The cubic root of 213460000 is about 597.6388687684.

The spelling of 213460000 in words is "two hundred thirteen million, four hundred sixty thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 65 80 100 104 125 130 160 200 208 250 260 325 400 416 500 520 625 650 800 821 1000 1040 1250 1300 1625 1642 2000 2080 2500 2600 3250 3284 4000 4105 5000 5200 6500 6568 8125 8210 10000 10400 10673 13000 13136 16250 16420 20000 20525 21346 26000 26272 32500 32840 41050 42692 52000 53365 65000 65680 82100 85384 102625 106730 130000 131360 164200 170768 205250 213460 260000 266825 328400 341536 410500 426920 513125 533650 656800 821000 853840 1026250 1067300 1334125 1642000 1707680 2052500 2134600 2668250 3284000 4105000 4269200 5336500 6670625 8210000 8538400 10673000 13341250 16420000 21346000 26682500 42692000 53365000 106730000 213460000