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488687845 = 5293370261
BaseRepresentation
bin11101001000001…
…100100011100101
31021001112220200211
4131020030203211
52000101002340
6120254135421
715052530622
oct3510144345
91231486624
10488687845
11230940458
121177b1571
137a324209
1448c8d349
152cd815ea
hex1d20c8e5

488687845 has 8 divisors (see below), whose sum is σ = 606647160. Its totient is φ = 377469120.

The previous prime is 488687833. The next prime is 488687861. The reversal of 488687845 is 548786884.

It can be written as a sum of positive squares in 4 ways, for example, as 1205604 + 487482241 = 1098^2 + 22079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 488687845 - 211 = 488685797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 488687845.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1684986 + ... + 1685275.

It is an arithmetic number, because the mean of its divisors is an integer number (75830895).

Almost surely, 2488687845 is an apocalyptic number.

It is an amenable number.

488687845 is a deficient number, since it is larger than the sum of its proper divisors (117959315).

488687845 is a wasteful number, since it uses less digits than its factorization.

488687845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370295.

The product of its digits is 13762560, while the sum is 58.

The square root of 488687845 is about 22106.2851922253. The cubic root of 488687845 is about 787.6691673193.

The spelling of 488687845 in words is "four hundred eighty-eight million, six hundred eighty-seven thousand, eight hundred forty-five".

Divisors: 1 5 29 145 3370261 16851305 97737569 488687845