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30022311231 = 3311101085223
BaseRepresentation
bin11011111101011110…
…000001110100111111
32212111022021102122000
4123331132001310333
5442441202424411
621443030153343
72111660302113
oct337536016477
985438242560
1030022311231
11118068a2870
12599a4b2853
132aa5ba7503
14164b3b5743
15baaa84956
hex6fd781d3f

30022311231 has 16 divisors (see below), whose sum is σ = 48520907520. Its totient is φ = 18195339960.

The previous prime is 30022311227. The next prime is 30022311251. The reversal of 30022311231 is 13211322003.

30022311231 is a `hidden beast` number, since 300 + 22 + 311 + 2 + 31 = 666.

It is not a de Polignac number, because 30022311231 - 22 = 30022311227 is a prime.

It is a super-2 number, since 2×300223112312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30022311251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50542315 + ... + 50542908.

It is an arithmetic number, because the mean of its divisors is an integer number (3032556720).

Almost surely, 230022311231 is an apocalyptic number.

30022311231 is a deficient number, since it is larger than the sum of its proper divisors (18498596289).

30022311231 is a wasteful number, since it uses less digits than its factorization.

30022311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101085243 (or 101085237 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30022311231 its reverse (13211322003), we get a palindrome (43233633234).

The spelling of 30022311231 in words is "thirty billion, twenty-two million, three hundred eleven thousand, two hundred thirty-one".

Divisors: 1 3 9 11 27 33 99 297 101085223 303255669 909767007 1111937453 2729301021 3335812359 10007437077 30022311231