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42419823 = 3121311657
BaseRepresentation
bin1010000111010…
…0011001101111
32221211011001120
42201310121233
541324413243
64113112023
71023363645
oct241643157
987734046
1042419823
1121a43706
1212258613
138a330b4
1458c3195
153acdc83
hex287466f

42419823 has 8 divisors (see below), whose sum is σ = 56611248. Its totient is φ = 28254144.

The previous prime is 42419821. The next prime is 42419831. The reversal of 42419823 is 32891424.

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

It is not a de Polignac number, because 42419823 - 21 = 42419821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42419821) 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, 2190 + ... + 9467.

It is an arithmetic number, because the mean of its divisors is an integer number (7076406).

Almost surely, 242419823 is an apocalyptic number.

42419823 is a deficient number, since it is larger than the sum of its proper divisors (14191425).

42419823 is a wasteful number, since it uses less digits than its factorization.

42419823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12873.

The product of its digits is 13824, while the sum is 33.

The square root of 42419823 is about 6513.0502070842. The cubic root of 42419823 is about 348.7570140288.

The spelling of 42419823 in words is "forty-two million, four hundred nineteen thousand, eight hundred twenty-three".

Divisors: 1 3 1213 3639 11657 34971 14139941 42419823