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47887925 = 521915517
BaseRepresentation
bin1011011010101…
…1011000110101
310100002221212212
42312223120311
544224403200
64430223205
71121016641
oct266533065
9110087785
1047887925
11250389a8
1214054b05
139bc8c67
146507c21
15430e035
hex2dab635

47887925 has 6 divisors (see below), whose sum is σ = 59381058. Its totient is φ = 38310320.

The previous prime is 47887921. The next prime is 47887949. The reversal of 47887925 is 52978874.

It can be written as a sum of positive squares in 3 ways, for example, as 3678724 + 44209201 = 1918^2 + 6649^2 .

It is not a de Polignac number, because 47887925 - 22 = 47887921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47887921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 957734 + ... + 957783.

It is an arithmetic number, because the mean of its divisors is an integer number (9896843).

Almost surely, 247887925 is an apocalyptic number.

It is an amenable number.

47887925 is a deficient number, since it is larger than the sum of its proper divisors (11493133).

47887925 is a wasteful number, since it uses less digits than its factorization.

47887925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915527 (or 1915522 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 47887925 is about 6920.1101869840. The cubic root of 47887925 is about 363.1410456500.

The spelling of 47887925 in words is "forty-seven million, eight hundred eighty-seven thousand, nine hundred twenty-five".

Divisors: 1 5 25 1915517 9577585 47887925