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202330230253 = 1910648959487
BaseRepresentation
bin1011110001101111010…
…0100100110111101101
3201100020202000122110121
42330123310210313231
511303333014332003
6232541011004541
720421634403134
oct2743364446755
9640222018417
10202330230253
117889815a728
1233267b99751
131610601a048
149b1577c91b
1553e2d17cbd
hex2f1bd24ded

202330230253 has 4 divisors (see below), whose sum is σ = 212979189760. Its totient is φ = 191681270748.

The previous prime is 202330230241. The next prime is 202330230269. The reversal of 202330230253 is 352032033202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202330230253 - 237 = 64891276781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202330230203) 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 3 ways as a sum of consecutive naturals, for example, 5324479725 + ... + 5324479762.

It is an arithmetic number, because the mean of its divisors is an integer number (53244797440).

Almost surely, 2202330230253 is an apocalyptic number.

It is an amenable number.

202330230253 is a deficient number, since it is larger than the sum of its proper divisors (10648959507).

202330230253 is a wasteful number, since it uses less digits than its factorization.

202330230253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648959506.

The product of its (nonzero) digits is 6480, while the sum is 25.

Adding to 202330230253 its reverse (352032033202), we get a palindrome (554362263455).

The spelling of 202330230253 in words is "two hundred two billion, three hundred thirty million, two hundred thirty thousand, two hundred fifty-three".

Divisors: 1 19 10648959487 202330230253