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18127934 = 211823997
BaseRepresentation
bin100010100100…
…1110000111110
31021002222211222
41011021300332
514120043214
61444313342
7310041056
oct105116076
937088758
1018127934
11a261870
1260a2852
1339a92b6
14259c566
1518d138e
hex1149c3e

18127934 has 8 divisors (see below), whose sum is σ = 29663928. Its totient is φ = 8239960.

The previous prime is 18127931. The next prime is 18127939. The reversal of 18127934 is 43972181.

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

It is a super-2 number, since 2×181279342 = 657243982216712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18127894 and 18127903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18127931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411977 + ... + 412020.

It is an arithmetic number, because the mean of its divisors is an integer number (3707991).

Almost surely, 218127934 is an apocalyptic number.

18127934 is a deficient number, since it is larger than the sum of its proper divisors (11535994).

18127934 is a wasteful number, since it uses less digits than its factorization.

18127934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824010.

The product of its digits is 12096, while the sum is 35.

The square root of 18127934 is about 4257.6911583627. The cubic root of 18127934 is about 262.6935666777.

The spelling of 18127934 in words is "eighteen million, one hundred twenty-seven thousand, nine hundred thirty-four".

Divisors: 1 2 11 22 823997 1647994 9063967 18127934