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48388987 = 1723123757
BaseRepresentation
bin1011100010010…
…1101101111011
310101001102012201
42320211231323
544341421422
64445051031
71125204523
oct270455573
9111042181
1048388987
11253503a9
1214256a77
13a04304a
1465d8683
1543ac727
hex2e25b7b

48388987 has 8 divisors (see below), whose sum is σ = 53463456. Its totient is φ = 43562112.

The previous prime is 48388969. The next prime is 48389051. The reversal of 48388987 is 78988384.

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

It is a cyclic number.

It is not a de Polignac number, because 48388987 - 219 = 47864699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48388937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61488 + ... + 62269.

It is an arithmetic number, because the mean of its divisors is an integer number (6682932).

Almost surely, 248388987 is an apocalyptic number.

48388987 is a deficient number, since it is larger than the sum of its proper divisors (5074469).

48388987 is a wasteful number, since it uses less digits than its factorization.

48388987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123797.

The product of its digits is 3096576, while the sum is 55.

The square root of 48388987 is about 6956.2193036160. The cubic root of 48388987 is about 364.4031955974.

The spelling of 48388987 in words is "forty-eight million, three hundred eighty-eight thousand, nine hundred eighty-seven".

Divisors: 1 17 23 391 123757 2103869 2846411 48388987