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42847863 = 345731253
BaseRepresentation
bin1010001101110…
…0111001110111
32222121220012220
42203130321313
541432112423
64130213423
71030125612
oct243347167
988556186
1042847863
1122206263
1212424273
138b52b86
145995179
153b659e3
hex28dce77

42847863 has 8 divisors (see below), whose sum is σ = 57257328. Its totient is φ = 28501824.

The previous prime is 42847853. The next prime is 42847913. The reversal of 42847863 is 36874824.

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

It is not a de Polignac number, because 42847863 - 214 = 42831479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42847843) 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, 14256 + ... + 16997.

It is an arithmetic number, because the mean of its divisors is an integer number (7157166).

Almost surely, 242847863 is an apocalyptic number.

42847863 is a deficient number, since it is larger than the sum of its proper divisors (14409465).

42847863 is a wasteful number, since it uses less digits than its factorization.

42847863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31713.

The product of its digits is 258048, while the sum is 42.

The square root of 42847863 is about 6545.8279079120. The cubic root of 42847863 is about 349.9261422386.

The spelling of 42847863 in words is "forty-two million, eight hundred forty-seven thousand, eight hundred sixty-three".

Divisors: 1 3 457 1371 31253 93759 14282621 42847863