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49670081 = 127391103
BaseRepresentation
bin1011110101111…
…0011111000001
310110110111112122
42331132133001
5100203420311
64532334025
71142121506
oct275363701
9113414478
1049670081
112604595a
1214774315
13a3a11a6
14684d4ad
1545620db
hex2f5e7c1

49670081 has 4 divisors (see below), whose sum is σ = 50061312. Its totient is φ = 49278852.

The previous prime is 49670077. The next prime is 49670113. The reversal of 49670081 is 18007694.

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 49670081 - 22 = 49670077 is a prime.

It is a super-2 number, since 2×496700812 = 4934233893093122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49670281) 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, 195425 + ... + 195678.

It is an arithmetic number, because the mean of its divisors is an integer number (12515328).

Almost surely, 249670081 is an apocalyptic number.

It is an amenable number.

49670081 is a deficient number, since it is larger than the sum of its proper divisors (391231).

49670081 is a wasteful number, since it uses less digits than its factorization.

49670081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391230.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 49670081 is about 7047.7004050967. The cubic root of 49670081 is about 367.5910731140.

The spelling of 49670081 in words is "forty-nine million, six hundred seventy thousand, eighty-one".

Divisors: 1 127 391103 49670081