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49082021 = 311583291
BaseRepresentation
bin1011101100111…
…0111010100101
310102100121212122
42323032322211
5100031111041
64511555325
71134122162
oct273167245
9112317778
1049082021
112578405a
121452bb45
13a226621
146739069
154497c4b
hex2eceea5

49082021 has 4 divisors (see below), whose sum is σ = 50665344. Its totient is φ = 47498700.

The previous prime is 49081993. The next prime is 49082027. The reversal of 49082021 is 12028094.

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 49082021 - 214 = 49065637 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 (49082027) 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, 791615 + ... + 791676.

It is an arithmetic number, because the mean of its divisors is an integer number (12666336).

Almost surely, 249082021 is an apocalyptic number.

It is an amenable number.

49082021 is a deficient number, since it is larger than the sum of its proper divisors (1583323).

49082021 is a wasteful number, since it uses less digits than its factorization.

49082021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583322.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 49082021 is about 7005.8561932144. The cubic root of 49082021 is about 366.1346339964.

The spelling of 49082021 in words is "forty-nine million, eighty-two thousand, twenty-one".

Divisors: 1 31 1583291 49082021