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212013022301 = 17109091143217
BaseRepresentation
bin1100010101110011110…
…1011111110001011101
3202021020112220110002022
43011130331133301131
511433200313203201
6241221502505525
721213610645433
oct3053475376135
9667215813068
10212013022301
1181a06907703
123510a8952a5
1316cba0930b2
14a39372cd53
1557ace1841b
hex315cf5fc5d

212013022301 has 8 divisors (see below), whose sum is σ = 224505150840. Its totient is φ = 199523202048.

The previous prime is 212013022283. The next prime is 212013022313. The reversal of 212013022301 is 103220310212.

It can be written as a sum of positive squares in 4 ways, for example, as 60466318201 + 151546704100 = 245899^2 + 389290^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212013022301 - 26 = 212013022237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212013022301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013022801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386156 + ... + 757061.

It is an arithmetic number, because the mean of its divisors is an integer number (28063143855).

Almost surely, 2212013022301 is an apocalyptic number.

It is an amenable number.

212013022301 is a deficient number, since it is larger than the sum of its proper divisors (12492128539).

212013022301 is a wasteful number, since it uses less digits than its factorization.

212013022301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154143.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212013022301 its reverse (103220310212), we get a palindrome (315233332513).

The spelling of 212013022301 in words is "two hundred twelve billion, thirteen million, twenty-two thousand, three hundred one".

Divisors: 1 17 10909 185453 1143217 19434689 12471354253 212013022301