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49680697 = 114516427
BaseRepresentation
bin1011110110000…
…1000100111001
310110111001002211
42331201010321
5100204240242
64532455121
71142164453
oct275410471
9113431084
1049680697
1126052930
121477a4a1
13a3a5c81
1468532d3
154565317
hex2f61139

49680697 has 4 divisors (see below), whose sum is σ = 54197136. Its totient is φ = 45164260.

The previous prime is 49680689. The next prime is 49680703. The reversal of 49680697 is 79608694.

49680697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 49680697 - 23 = 49680689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49680697.

It is not an unprimeable number, because it can be changed into a prime (49680637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258203 + ... + 2258224.

It is an arithmetic number, because the mean of its divisors is an integer number (13549284).

Almost surely, 249680697 is an apocalyptic number.

It is an amenable number.

49680697 is a deficient number, since it is larger than the sum of its proper divisors (4516439).

49680697 is a wasteful number, since it uses less digits than its factorization.

49680697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516438.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 49680697 is about 7048.4535183258. The cubic root of 49680697 is about 367.6172596954.

The spelling of 49680697 in words is "forty-nine million, six hundred eighty thousand, six hundred ninety-seven".

Divisors: 1 11 4516427 49680697