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48091939 = 76870277
BaseRepresentation
bin1011011101110…
…1001100100011
310100111022201221
42313131030203
544302420224
64434435511
71122526510
oct267351443
9110438657
1048091939
1125168205
1214132b97
139c6aa8c
14655c307
15434e6e4
hex2ddd323

48091939 has 4 divisors (see below), whose sum is σ = 54962224. Its totient is φ = 41221656.

The previous prime is 48091891. The next prime is 48091949. The reversal of 48091939 is 93919084.

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

It is not a de Polignac number, because 48091939 - 29 = 48091427 is a prime.

It is a super-3 number, since 3×480919393 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48091895 and 48091904.

It is not an unprimeable number, because it can be changed into a prime (48091949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3435132 + ... + 3435145.

It is an arithmetic number, because the mean of its divisors is an integer number (13740556).

Almost surely, 248091939 is an apocalyptic number.

48091939 is a deficient number, since it is larger than the sum of its proper divisors (6870285).

48091939 is an equidigital number, since it uses as much as digits as its factorization.

48091939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6870284.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 48091939 is about 6934.8351818915. The cubic root of 48091939 is about 363.6560042592.

The spelling of 48091939 in words is "forty-eight million, ninety-one thousand, nine hundred thirty-nine".

Divisors: 1 7 6870277 48091939