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18601741694 = 223404385689
BaseRepresentation
bin10001010100110000…
…000000110101111110
31210000101110101110002
4101110300000311332
5301044021213234
612313455514302
71225653124034
oct212460006576
953011411402
1018601741694
11798621a948
123731828992
1319a5ab8b63
14c86708554
1573d11c27e
hex454c00d7e

18601741694 has 8 divisors (see below), whose sum is σ = 29115769680. Its totient is φ = 8896485136.

The previous prime is 18601741687. The next prime is 18601741709. The reversal of 18601741694 is 49614710681.

It is a happy number.

18601741694 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202192799 + ... + 202192890.

It is an arithmetic number, because the mean of its divisors is an integer number (3639471210).

Almost surely, 218601741694 is an apocalyptic number.

18601741694 is a deficient number, since it is larger than the sum of its proper divisors (10514027986).

18601741694 is a wasteful number, since it uses less digits than its factorization.

18601741694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404385714.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 18601741694 in words is "eighteen billion, six hundred one million, seven hundred forty-one thousand, six hundred ninety-four".

Divisors: 1 2 23 46 404385689 808771378 9300870847 18601741694