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48881405 = 59776281
BaseRepresentation
bin1011101001110…
…1111011111101
310101222102200102
42322131323331
5100003201110
64503410445
71132325246
oct272357375
9111872612
1048881405
1125657361
1214453a25
13a186211
1466c5ccd
1544585a5
hex2e9defd

48881405 has 4 divisors (see below), whose sum is σ = 58657692. Its totient is φ = 39105120.

The previous prime is 48881383. The next prime is 48881407. The reversal of 48881405 is 50418884.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31956409 + 16924996 = 5653^2 + 4114^2 .

It is not a de Polignac number, because 48881405 - 218 = 48619261 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 (48881407) 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, 4888136 + ... + 4888145.

It is an arithmetic number, because the mean of its divisors is an integer number (14664423).

Almost surely, 248881405 is an apocalyptic number.

It is an amenable number.

48881405 is a deficient number, since it is larger than the sum of its proper divisors (9776287).

48881405 is an equidigital number, since it uses as much as digits as its factorization.

48881405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9776286.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 48881405 is about 6991.5237967127. The cubic root of 48881405 is about 365.6351111724.

The spelling of 48881405 in words is "forty-eight million, eight hundred eighty-one thousand, four hundred five".

Divisors: 1 5 9776281 48881405