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49641369 = 316547123
BaseRepresentation
bin1011110101011…
…1011110011001
310110102001011020
42331113132121
5100202010434
64531553053
71141642011
oct275273631
9113361136
1049641369
1126026328
121475b789
13a3910bb
146842c41
154558849
hex2f57799

49641369 has 4 divisors (see below), whose sum is σ = 66188496. Its totient is φ = 33094244.

The previous prime is 49641367. The next prime is 49641391. The reversal of 49641369 is 96314694.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49641369 - 21 = 49641367 is a prime.

It is a super-2 number, since 2×496413692 = 4928531032388322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49641369.

It is not an unprimeable number, because it can be changed into a prime (49641367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8273559 + ... + 8273564.

It is an arithmetic number, because the mean of its divisors is an integer number (16547124).

Almost surely, 249641369 is an apocalyptic number.

It is an amenable number.

49641369 is a deficient number, since it is larger than the sum of its proper divisors (16547127).

49641369 is a wasteful number, since it uses less digits than its factorization.

49641369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16547126.

The product of its digits is 139968, while the sum is 42.

The square root of 49641369 is about 7045.6631341556. The cubic root of 49641369 is about 367.5202302714.

The spelling of 49641369 in words is "forty-nine million, six hundred forty-one thousand, three hundred sixty-nine".

Divisors: 1 3 16547123 49641369