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42387199 = 311996871
BaseRepresentation
bin1010000110110…
…0011011111111
32221202111022021
42201230123333
541322342244
64112301011
71023166561
oct241543377
987674267
1042387199
1121a21148
1212241767
138a212aa
1458b5331
153ac4284
hex286c6ff

42387199 has 8 divisors (see below), whose sum is σ = 43980800. Its totient is φ = 40807800.

The previous prime is 42387197. The next prime is 42387211. The reversal of 42387199 is 99178324.

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

It is a cyclic number.

It is not a de Polignac number, because 42387199 - 21 = 42387197 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 (42387197) 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, 2734 + ... + 9604.

It is an arithmetic number, because the mean of its divisors is an integer number (5497600).

Almost surely, 242387199 is an apocalyptic number.

42387199 is a deficient number, since it is larger than the sum of its proper divisors (1593601).

42387199 is a wasteful number, since it uses less digits than its factorization.

42387199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7101.

The product of its digits is 108864, while the sum is 43.

The square root of 42387199 is about 6510.5452152642. The cubic root of 42387199 is about 348.6675844016.

The spelling of 42387199 in words is "forty-two million, three hundred eighty-seven thousand, one hundred ninety-nine".

Divisors: 1 31 199 6169 6871 213001 1367329 42387199