Search a number
-
+
212518680320 = 285166030219
BaseRepresentation
bin1100010111101100011…
…0011011011100000000
3202022112210101112111002
43011323012123130000
511440214240232240
6241344004511132
721232260656162
oct3057306333400
9668483345432
10212518680320
1182146288aa1
12352300ab4a8
131706aa7961b
14a400958932
1557dc4ecd15
hex317b19b700

212518680320 has 36 divisors (see below), whose sum is σ = 509048654520. Its totient is φ = 85007471616.

The previous prime is 212518680317. The next prime is 212518680347. The reversal of 212518680320 is 23086815212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83013830 + ... + 83016389.

Almost surely, 2212518680320 is an apocalyptic number.

212518680320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212518680320 is an abundant number, since it is smaller than the sum of its proper divisors (296529974200).

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

212518680320 is an equidigital number, since it uses as much as digits as its factorization.

212518680320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166030240 (or 166030226 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 212518680320 in words is "two hundred twelve billion, five hundred eighteen million, six hundred eighty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 166030219 332060438 664120876 830151095 1328241752 1660302190 2656483504 3320604380 5312967008 6641208760 10625934016 13282417520 21251868032 26564835040 42503736064 53129670080 106259340160 212518680320