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48972787 = 472310369
BaseRepresentation
bin1011101011010…
…0001111110011
310102011002000221
42322310033303
5100014112122
64505353511
71133155543
oct272641763
9112132027
1048972787
1125709a86
1214498897
13a1b89a6
14670b323
1544756c7
hex2eb43f3

48972787 has 4 divisors (see below), whose sum is σ = 48987880. Its totient is φ = 48957696.

The previous prime is 48972761. The next prime is 48972797. The reversal of 48972787 is 78727984.

It is a happy number.

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 48972787 - 27 = 48972659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48972797) 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, 462 + ... + 9907.

It is an arithmetic number, because the mean of its divisors is an integer number (12246970).

Almost surely, 248972787 is an apocalyptic number.

48972787 is a deficient number, since it is larger than the sum of its proper divisors (15093).

48972787 is a wasteful number, since it uses less digits than its factorization.

48972787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15092.

The product of its digits is 1580544, while the sum is 52.

The square root of 48972787 is about 6998.0559443320. The cubic root of 48972787 is about 365.8628164944.

The spelling of 48972787 in words is "forty-eight million, nine hundred seventy-two thousand, seven hundred eighty-seven".

Divisors: 1 4723 10369 48972787