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48648815 = 5172131257
BaseRepresentation
bin1011100110010…
…1001001101111
310101112121121222
42321211021233
544423230230
64454413555
71130336165
oct271451157
9111477558
1048648815
1125508636
12143612bb
13a1043a7
146665235
15440e6e5
hex2e6526f

48648815 has 24 divisors (see below), whose sum is σ = 62731152. Its totient is φ = 36208640.

The previous prime is 48648773. The next prime is 48648829. The reversal of 48648815 is 51884684.

It is not a de Polignac number, because 48648815 - 26 = 48648751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189167 + ... + 189423.

It is an arithmetic number, because the mean of its divisors is an integer number (2613798).

Almost surely, 248648815 is an apocalyptic number.

48648815 is a deficient number, since it is larger than the sum of its proper divisors (14082337).

48648815 is a wasteful number, since it uses less digits than its factorization.

48648815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 410 counting only the distinct ones).

The product of its digits is 245760, while the sum is 44.

The square root of 48648815 is about 6974.8702496892. The cubic root of 48648815 is about 365.0542610268.

The spelling of 48648815 in words is "forty-eight million, six hundred forty-eight thousand, eight hundred fifteen".

Divisors: 1 5 17 85 131 257 289 655 1285 1445 2227 4369 11135 21845 33667 37859 74273 168335 189295 371365 572339 2861695 9729763 48648815