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BaseRepresentation
bin1011111010111…
…1000001110001
310111002021002022
42332233001301
5100244444420
64543401225
71144664360
oct276570161
9114067068
1049999985
1126250802
12148b3215
13a4883b9
1468d77d7
1545c9c25
hex2faf071

49999985 has 8 divisors (see below), whose sum is σ = 68571456. Its totient is φ = 34285680.

The previous prime is 49999921. The next prime is 49999991. The reversal of 49999985 is 58999994.

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

It is not a de Polignac number, because 49999985 - 26 = 49999921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714251 + ... + 714320.

It is an arithmetic number, because the mean of its divisors is an integer number (8571432).

Almost surely, 249999985 is an apocalyptic number.

It is an amenable number.

49999985 is a deficient number, since it is larger than the sum of its proper divisors (18571471).

49999985 is a wasteful number, since it uses less digits than its factorization.

49999985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428583.

The product of its digits is 9447840, while the sum is 62.

The square root of 49999985 is about 7071.0667512052. The cubic root of 49999985 is about 368.4031130237.

Subtracting 49999985 from its reverse (58999994), we obtain a palindrome (9000009).

The spelling of 49999985 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred eighty-five".

Divisors: 1 5 7 35 1428571 7142855 9999997 49999985