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27418331923 = 41821814543
BaseRepresentation
bin11001100010010000…
…101000101100010011
32121202211102120112221
4121202100220230103
5422123043110143
620332410001511
71660310655523
oct314220505423
977684376487
1027418331923
111069aa2a654
125392416297
13277c570258
141481619683
15aa716a2ed
hex662428b13

27418331923 has 8 divisors (see below), whose sum is σ = 28121317056. Its totient is φ = 26716977600.

The previous prime is 27418331873. The next prime is 27418331939. The reversal of 27418331923 is 32913381472.

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

It is not a de Polignac number, because 27418331923 - 29 = 27418331411 is a prime.

It is a super-3 number, since 3×274183319233 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27418331923.

It is not an unprimeable number, because it can be changed into a prime (27418331123) 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, 373611 + ... + 440932.

It is an arithmetic number, because the mean of its divisors is an integer number (3515164632).

Almost surely, 227418331923 is an apocalyptic number.

27418331923 is a deficient number, since it is larger than the sum of its proper divisors (702985133).

27418331923 is an equidigital number, since it uses as much as digits as its factorization.

27418331923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815405.

The product of its digits is 217728, while the sum is 43.

The spelling of 27418331923 in words is "twenty-seven billion, four hundred eighteen million, three hundred thirty-one thousand, nine hundred twenty-three".

Divisors: 1 41 821 33661 814543 33396263 668739803 27418331923