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18290023419 = 36096674473
BaseRepresentation
bin10001000010001010…
…111001101111111011
31202012122220110100210
4101002022321233323
5244424221222134
612222522402203
71215146430303
oct210212715773
952178813323
1018290023419
117836272338
123665360363
131956347385
14c57164603
15720a962e9
hex4422b9bfb

18290023419 has 4 divisors (see below), whose sum is σ = 24386697896. Its totient is φ = 12193348944.

The previous prime is 18290023417. The next prime is 18290023457. The reversal of 18290023419 is 91432009281.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 18290023419 - 21 = 18290023417 is a prime.

It is a super-2 number, since 2×182900234192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18290023417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3048337234 + ... + 3048337239.

It is an arithmetic number, because the mean of its divisors is an integer number (6096674474).

Almost surely, 218290023419 is an apocalyptic number.

18290023419 is a deficient number, since it is larger than the sum of its proper divisors (6096674477).

18290023419 is an equidigital number, since it uses as much as digits as its factorization.

18290023419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096674476.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 18290023419 in words is "eighteen billion, two hundred ninety million, twenty-three thousand, four hundred nineteen".

Divisors: 1 3 6096674473 18290023419