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47892485 = 5172919429
BaseRepresentation
bin1011011010110…
…0100000000101
310100010012010202
42312230200011
544230024420
64430300245
71121036144
oct266544005
9110105122
1047892485
1125041373
1214057685
139bcb064
14650975b
154310575
hex2dac805

47892485 has 16 divisors (see below), whose sum is σ = 62953200. Its totient is φ = 34814976.

The previous prime is 47892461. The next prime is 47892487. The reversal of 47892485 is 58429874.

47892485 = 4442 + 4452 + ... + 6132.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3363556 + 44528929 = 1834^2 + 6673^2 .

It is a cyclic number.

It is not a de Polignac number, because 47892485 - 210 = 47891461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47892487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7250 + ... + 12179.

It is an arithmetic number, because the mean of its divisors is an integer number (3934575).

Almost surely, 247892485 is an apocalyptic number.

It is an amenable number.

47892485 is a deficient number, since it is larger than the sum of its proper divisors (15060715).

47892485 is a wasteful number, since it uses less digits than its factorization.

47892485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19480.

The product of its digits is 645120, while the sum is 47.

The square root of 47892485 is about 6920.4396536636. The cubic root of 47892485 is about 363.1525716635.

The spelling of 47892485 in words is "forty-seven million, eight hundred ninety-two thousand, four hundred eighty-five".

Divisors: 1 5 17 29 85 145 493 2465 19429 97145 330293 563441 1651465 2817205 9578497 47892485