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48881399 = 76983057
BaseRepresentation
bin1011101001110…
…1111011110111
310101222102200012
42322131323313
5100003201044
64503410435
71132325240
oct272357367
9111872605
1048881399
1125657356
1214453a1b
13a186208
1466c5cc7
15445859e
hex2e9def7

48881399 has 4 divisors (see below), whose sum is σ = 55864464. Its totient is φ = 41898336.

The previous prime is 48881383. The next prime is 48881407. The reversal of 48881399 is 99318884.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48881399 - 24 = 48881383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48881309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3491522 + ... + 3491535.

It is an arithmetic number, because the mean of its divisors is an integer number (13966116).

Almost surely, 248881399 is an apocalyptic number.

48881399 is a deficient number, since it is larger than the sum of its proper divisors (6983065).

48881399 is an equidigital number, since it uses as much as digits as its factorization.

48881399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983064.

The product of its digits is 497664, while the sum is 50.

The square root of 48881399 is about 6991.5233676217. The cubic root of 48881399 is about 365.6350962123.

The spelling of 48881399 in words is "forty-eight million, eight hundred eighty-one thousand, three hundred ninety-nine".

Divisors: 1 7 6983057 48881399