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42015283 = 411278069
BaseRepresentation
bin1010000001000…
…1101000110011
32221001121010121
42200101220303
541223442113
64100311111
71020060352
oct240215063
987047117
1042015283
1121797782
12120a2497
138920c1b
145819999
153a4de8d
hex2811a33

42015283 has 8 divisors (see below), whose sum is σ = 43384320. Its totient is φ = 40662720.

The previous prime is 42015277. The next prime is 42015307. The reversal of 42015283 is 38251024.

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 42015283 - 29 = 42014771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42015263) 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, 1173 + ... + 9241.

It is an arithmetic number, because the mean of its divisors is an integer number (5423040).

Almost surely, 242015283 is an apocalyptic number.

42015283 is a deficient number, since it is larger than the sum of its proper divisors (1369037).

42015283 is a wasteful number, since it uses less digits than its factorization.

42015283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8237.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 42015283 is about 6481.9197002123. The cubic root of 42015283 is about 347.6448213719.

The spelling of 42015283 in words is "forty-two million, fifteen thousand, two hundred eighty-three".

Divisors: 1 41 127 5207 8069 330829 1024763 42015283