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742852087 = 1331355799
BaseRepresentation
bin101100010001110…
…000010111110111
31220202210210111021
4230101300113313
53010132231322
6201413522011
724260065345
oct5421602767
91822723437
10742852087
1135135884a
12188943307
13bab94163
1470930995
15453394c7
hex2c4705f7

742852087 has 4 divisors (see below), whose sum is σ = 742921200. Its totient is φ = 742782976.

The previous prime is 742852079. The next prime is 742852109. The reversal of 742852087 is 780258247.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 780258247 = 2273437261.

It is a cyclic number.

It is not a de Polignac number, because 742852087 - 23 = 742852079 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 (742852007) 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, 14587 + ... + 41212.

It is an arithmetic number, because the mean of its divisors is an integer number (185730300).

Almost surely, 2742852087 is an apocalyptic number.

742852087 is a deficient number, since it is larger than the sum of its proper divisors (69113).

742852087 is a wasteful number, since it uses less digits than its factorization.

742852087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69112.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 742852087 is about 27255.3130049904. The cubic root of 742852087 is about 905.6647180421.

The spelling of 742852087 in words is "seven hundred forty-two million, eight hundred fifty-two thousand, eighty-seven".

Divisors: 1 13313 55799 742852087