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20231030233 = 379405113177
BaseRepresentation
bin10010110101110111…
…010000010111011001
31221012221020211011001
4102311313100113121
5312413120431413
613143301105001
71314225630301
oct226567202731
957187224131
1020231030233
1186419864a7
123b073b8161
131ba5507b0b
14d9cc64601
157d61a44dd
hex4b5dd05d9

20231030233 has 8 divisors (see below), whose sum is σ = 20290957280. Its totient is φ = 20171138400.

The previous prime is 20231030227. The next prime is 20231030317. The reversal of 20231030233 is 33203013202.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20231030233 is a prime.

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 20231030233.

It is not an unprimeable number, because it can be changed into a prime (20201030233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528741 + ... + 1541917.

It is an arithmetic number, because the mean of its divisors is an integer number (2536369660).

Almost surely, 220231030233 is an apocalyptic number.

It is an amenable number.

20231030233 is a deficient number, since it is larger than the sum of its proper divisors (59927047).

20231030233 is a wasteful number, since it uses less digits than its factorization.

20231030233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17607.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20231030233 its reverse (33203013202), we get a palindrome (53434043435).

It can be divided in two parts, 2023 and 1030233, that added together give a square (1032256 = 10162).

The spelling of 20231030233 in words is "twenty billion, two hundred thirty-one million, thirty thousand, two hundred thirty-three".

Divisors: 1 379 4051 13177 1535329 4994083 53380027 20231030233