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47980943 = 195124593
BaseRepresentation
bin1011011100001…
…0000110001111
310100021200110222
42313002012033
544240342233
64432221555
71121555063
oct267020617
9110250428
1047980943
11250a187a
121409a8bb
139c2c3ba
14652daa3
15432b898
hex2dc218f

47980943 has 4 divisors (see below), whose sum is σ = 48007488. Its totient is φ = 47954400.

The previous prime is 47980861. The next prime is 47980969. The reversal of 47980943 is 34908974.

47980943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47980943 - 224 = 31203727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47980894 and 47980903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47980973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10346 + ... + 14247.

It is an arithmetic number, because the mean of its divisors is an integer number (12001872).

Almost surely, 247980943 is an apocalyptic number.

47980943 is a deficient number, since it is larger than the sum of its proper divisors (26545).

47980943 is a wasteful number, since it uses less digits than its factorization.

47980943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26544.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 47980943 is about 6926.8277732307. The cubic root of 47980943 is about 363.3760165512.

The spelling of 47980943 in words is "forty-seven million, nine hundred eighty thousand, nine hundred forty-three".

Divisors: 1 1951 24593 47980943