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230220212031 = 32214111947699
BaseRepresentation
bin1101011001101000110…
…0011010011100111111
3211000020102221111222200
43112122030122130333
512232442333241111
6253432310042543
722430033341305
oct3263214323477
9730212844880
10230220212031
11896aa342847
1238750349453
131892c1c7344
14b1dd890275
155ec659b256
hex359a31a73f

230220212031 has 12 divisors (see below), whose sum is σ = 332695654200. Its totient is φ = 153408442320.

The previous prime is 230220211999. The next prime is 230220212059. The reversal of 230220212031 is 130212022032.

230220212031 is a `hidden beast` number, since 230 + 220 + 212 + 0 + 3 + 1 = 666.

It is not a de Polignac number, because 230220212031 - 25 = 230220211999 is a prime.

It is a super-2 number, since 2×2302202120312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230220211995 and 230220212013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230220212081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5954581 + ... + 5993118.

It is an arithmetic number, because the mean of its divisors is an integer number (27724637850).

Almost surely, 2230220212031 is an apocalyptic number.

230220212031 is a deficient number, since it is larger than the sum of its proper divisors (102475442169).

230220212031 is a wasteful number, since it uses less digits than its factorization.

230220212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11949846 (or 11949843 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 230220212031 its reverse (130212022032), we get a palindrome (360432234063).

The spelling of 230220212031 in words is "two hundred thirty billion, two hundred twenty million, two hundred twelve thousand, thirty-one".

Divisors: 1 3 9 2141 6423 19269 11947699 35843097 107529291 25580023559 76740070677 230220212031