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49457203387 = 91154288917
BaseRepresentation
bin101110000011111000…
…010000100010111011
311201122202110020122121
4232003320100202323
51302242021002022
634415331302111
73400411202224
oct560370204273
9151582406577
1049457203387
1119a7a335a09
12970314a937
1348824821b7
1425725d824b
151446dc62c7
hexb83e108bb

49457203387 has 4 divisors (see below), whose sum is σ = 49511493216. Its totient is φ = 49402913560.

The previous prime is 49457203351. The next prime is 49457203427. The reversal of 49457203387 is 78330275494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49457203387 - 27 = 49457203259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49457203307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27143548 + ... + 27145369.

It is an arithmetic number, because the mean of its divisors is an integer number (12377873304).

Almost surely, 249457203387 is an apocalyptic number.

49457203387 is a deficient number, since it is larger than the sum of its proper divisors (54289829).

49457203387 is an equidigital number, since it uses as much as digits as its factorization.

49457203387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54289828.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 49457203387 in words is "forty-nine billion, four hundred fifty-seven million, two hundred three thousand, three hundred eighty-seven".

Divisors: 1 911 54288917 49457203387