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48739679 = 127383777
BaseRepresentation
bin1011100111101…
…1010101011111
310101201020021022
42321323111133
544434132204
64500354355
71131165122
oct271732537
9111636238
1048739679
112556a92a
12143a59bb
13a136861
14668a3b9
15442b5be
hex2e7b55f

48739679 has 4 divisors (see below), whose sum is σ = 49123584. Its totient is φ = 48355776.

The previous prime is 48739661. The next prime is 48739681. The reversal of 48739679 is 97693784.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-48739679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48739679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48739879) 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, 191762 + ... + 192015.

It is an arithmetic number, because the mean of its divisors is an integer number (12280896).

Almost surely, 248739679 is an apocalyptic number.

48739679 is a deficient number, since it is larger than the sum of its proper divisors (383905).

48739679 is a wasteful number, since it uses less digits than its factorization.

48739679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383904.

The product of its digits is 2286144, while the sum is 53.

The square root of 48739679 is about 6981.3808805995. The cubic root of 48739679 is about 365.2813968126.

The spelling of 48739679 in words is "forty-eight million, seven hundred thirty-nine thousand, six hundred seventy-nine".

Divisors: 1 127 383777 48739679