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23053645906 = 217678048409
BaseRepresentation
bin10101011110000110…
…101011100001010010
32012111122111112221021
4111132012223201102
5334203213132111
614331331350054
71444201520434
oct253606534122
965448445837
1023053645906
119860200425
12457475232a
132235222bc5
141189a94654
158edda9d71
hex55e1ab852

23053645906 has 8 divisors (see below), whose sum is σ = 36614614140. Its totient is φ = 10848774528.

The previous prime is 23053645873. The next prime is 23053645939. The reversal of 23053645906 is 60954635032.

It is an interprime number because it is at equal distance from previous prime (23053645873) and next prime (23053645939).

It can be written as a sum of positive squares in 2 ways, for example, as 21435595281 + 1618050625 = 146409^2 + 40225^2 .

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

It is a super-4 number, since 4×230536459064 (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

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, 339024171 + ... + 339024238.

Almost surely, 223053645906 is an apocalyptic number.

23053645906 is a deficient number, since it is larger than the sum of its proper divisors (13560968234).

23053645906 is a wasteful number, since it uses less digits than its factorization.

23053645906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678048428.

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 23053645906 in words is "twenty-three billion, fifty-three million, six hundred forty-five thousand, nine hundred six".

Divisors: 1 2 17 34 678048409 1356096818 11526822953 23053645906