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542215283 = 4113224763
BaseRepresentation
bin100000010100011…
…000110001110011
31101210021101112112
4200110120301303
52102301342113
6125445315535
716302516401
oct4024306163
91353241475
10542215283
11259080405
12131705bab
138844605c
1452024471
15329065a8
hex20518c73

542215283 has 4 divisors (see below), whose sum is σ = 555440088. Its totient is φ = 528990480.

The previous prime is 542215277. The next prime is 542215307. The reversal of 542215283 is 382512245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 382512245 = 576502449.

It is a cyclic number.

It is not a de Polignac number, because 542215283 - 220 = 541166707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542215253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6612341 + ... + 6612422.

It is an arithmetic number, because the mean of its divisors is an integer number (138860022).

Almost surely, 2542215283 is an apocalyptic number.

542215283 is a deficient number, since it is larger than the sum of its proper divisors (13224805).

542215283 is a wasteful number, since it uses less digits than its factorization.

542215283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13224804.

The product of its digits is 19200, while the sum is 32.

The square root of 542215283 is about 23285.5165929382. The cubic root of 542215283 is about 815.4373218458.

The spelling of 542215283 in words is "five hundred forty-two million, two hundred fifteen thousand, two hundred eighty-three".

Divisors: 1 41 13224763 542215283