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243932023 = 535578263
BaseRepresentation
bin11101000101000…
…01101101110111
3122000000000211101
432202201231313
5444421311043
640112150531
76021250036
oct1642415567
9560000741
10243932023
11115769815
1269838447
133b6c979a
142457a71d
151663624d
hexe8a1b77

243932023 has 8 divisors (see below), whose sum is σ = 249010848. Its totient is φ = 238870944.

The previous prime is 243931993. The next prime is 243932027. The reversal of 243932023 is 320239342.

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

It is a cyclic number.

It is not a de Polignac number, because 243932023 - 29 = 243931511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243931982 and 243932000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243932027) 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, 25390 + ... + 33652.

It is an arithmetic number, because the mean of its divisors is an integer number (31126356).

Almost surely, 2243932023 is an apocalyptic number.

243932023 is a deficient number, since it is larger than the sum of its proper divisors (5078825).

243932023 is an equidigital number, since it uses as much as digits as its factorization.

243932023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 243932023 is about 15618.3233094977. The cubic root of 243932023 is about 624.8219422375.

The spelling of 243932023 in words is "two hundred forty-three million, nine hundred thirty-two thousand, twenty-three".

Divisors: 1 53 557 8263 29521 437939 4602491 243932023