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23140455423 = 373583104827
BaseRepresentation
bin10101100011010001…
…110101001111111111
32012201200211221012120
4111203101311033333
5334342424033143
614344112134023
71446304424421
oct254321651777
965650757176
1023140455423
1198a5202728
124599837313
13224a1c8897
141197410811
15906806383
hex5634753ff

23140455423 has 8 divisors (see below), whose sum is σ = 30854654208. Its totient is φ = 15426613464.

The previous prime is 23140455421. The next prime is 23140455439. The reversal of 23140455423 is 32455404132.

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

It is not a de Polignac number, because 23140455423 - 21 = 23140455421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23140455421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168336 + ... + 273162.

It is an arithmetic number, because the mean of its divisors is an integer number (3856831776).

Almost surely, 223140455423 is an apocalyptic number.

23140455423 is a deficient number, since it is larger than the sum of its proper divisors (7714198785).

23140455423 is a wasteful number, since it uses less digits than its factorization.

23140455423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178413.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 23140455423 its reverse (32455404132), we get a palindrome (55595859555).

The spelling of 23140455423 in words is "twenty-three billion, one hundred forty million, four hundred fifty-five thousand, four hundred twenty-three".

Divisors: 1 3 73583 104827 220749 314481 7713485141 23140455423