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49984901 = 56418861
BaseRepresentation
bin1011111010101…
…1010110000101
310111001111101122
42332223112011
5100244004101
64543203325
71144602401
oct276532605
9114044348
1049984901
112624043a
12148a6545
13a481585
1468d2101
1545c551b
hex2fab585

49984901 has 4 divisors (see below), whose sum is σ = 49999404. Its totient is φ = 49970400.

The previous prime is 49984897. The next prime is 49984903. The reversal of 49984901 is 10948994.

It is a Cunningham number, because it is equal to 70702+1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 49420900 + 564001 = 7030^2 + 751^2 .

It is a cyclic number.

It is not a de Polignac number, because 49984901 - 22 = 49984897 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 (49984903) 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, 1211 + ... + 10071.

It is an arithmetic number, because the mean of its divisors is an integer number (12499851).

Almost surely, 249984901 is an apocalyptic number.

It is an amenable number.

49984901 is a deficient number, since it is larger than the sum of its proper divisors (14503).

49984901 is an equidigital number, since it uses as much as digits as its factorization.

49984901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14502.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 49984901 is about 7070.0000707214. Note that the first 4 decimals coincide. The cubic root of 49984901 is about 368.3660626695.

The spelling of 49984901 in words is "forty-nine million, nine hundred eighty-four thousand, nine hundred one".

Divisors: 1 5641 8861 49984901