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188413423 = 1166125913
BaseRepresentation
bin10110011101011…
…11010111101111
3111010112101121221
423032233113233
5341213212143
630410204211
74445326162
oct1316572757
9433471557
10188413423
1197399880
1253123667
133005b543
141b047ad9
151181b2ed
hexb3af5ef

188413423 has 8 divisors (see below), whose sum is σ = 205860816. Its totient is φ = 171019200.

The previous prime is 188413417. The next prime is 188413427. The reversal of 188413423 is 324314881.

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

It is not a de Polignac number, because 188413423 - 217 = 188282351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188413427) 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, 5686 + ... + 20227.

It is an arithmetic number, because the mean of its divisors is an integer number (25732602).

Almost surely, 2188413423 is an apocalyptic number.

188413423 is a deficient number, since it is larger than the sum of its proper divisors (17447393).

188413423 is a wasteful number, since it uses less digits than its factorization.

188413423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26585.

The product of its digits is 18432, while the sum is 34.

The square root of 188413423 is about 13726.3769072541. The cubic root of 188413423 is about 573.2850456973.

The spelling of 188413423 in words is "one hundred eighty-eight million, four hundred thirteen thousand, four hundred twenty-three".

Divisors: 1 11 661 7271 25913 285043 17128493 188413423