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220201213231 = 1733738436239
BaseRepresentation
bin1100110100010100000…
…0111101110100101111
3210001101012102122102001
43031011000331310233
512101433002310411
6245054204113131
721623535300256
oct3150500756457
9701335378361
10220201213231
118542893174a
1236814b357a7
13179c35b739c
14a92cdc379d
155adbbd8dc1
hex334503dd2f

220201213231 has 8 divisors (see below), whose sum is σ = 233846084160. Its totient is φ = 206633215488.

The previous prime is 220201213229. The next prime is 220201213237. The reversal of 220201213231 is 132312102022.

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

It is a cyclic number.

It is not a de Polignac number, because 220201213231 - 21 = 220201213229 is a prime.

It is a super-2 number, since 2×2202012132312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220201213199 and 220201213208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201213237) 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, 19212391 + ... + 19223848.

It is an arithmetic number, because the mean of its divisors is an integer number (29230760520).

Almost surely, 2220201213231 is an apocalyptic number.

220201213231 is a deficient number, since it is larger than the sum of its proper divisors (13644870929).

220201213231 is a wasteful number, since it uses less digits than its factorization.

220201213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38436593.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 220201213231 its reverse (132312102022), we get a palindrome (352513315253).

The spelling of 220201213231 in words is "two hundred twenty billion, two hundred one million, two hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 17 337 5729 38436239 653416063 12953012543 220201213231