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20230312313 = 25771785003
BaseRepresentation
bin10010110101110100…
…100001000101111001
31221012212220100100102
4102311310201011321
5312412424443223
613143233445145
71314216550241
oct226564410571
957185810312
1020230312313
118641536082
123b071107b5
131ba5316103
14d9cb18b21
157d60b1928
hex4b5d21179

20230312313 has 4 divisors (see below), whose sum is σ = 20231123088. Its totient is φ = 20229501540.

The previous prime is 20230312309. The next prime is 20230312327. The reversal of 20230312313 is 31321303202.

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 20230312313 - 22 = 20230312309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20230312343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366731 + ... + 418272.

It is an arithmetic number, because the mean of its divisors is an integer number (5057780772).

Almost surely, 220230312313 is an apocalyptic number.

It is an amenable number.

20230312313 is a deficient number, since it is larger than the sum of its proper divisors (810775).

20230312313 is an equidigital number, since it uses as much as digits as its factorization.

20230312313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810774.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20230312313 its reverse (31321303202), we get a palindrome (51551615515).

The spelling of 20230312313 in words is "twenty billion, two hundred thirty million, three hundred twelve thousand, three hundred thirteen".

Divisors: 1 25771 785003 20230312313