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49212983 = 192590157
BaseRepresentation
bin1011101110111…
…0111000110111
310102121021112002
42323232320313
5100044303413
64514445515
71135206041
oct273567067
9112537462
1049212983
1125863496
121459389b
13a271111
146770a91
1544c1958
hex2eeee37

49212983 has 4 divisors (see below), whose sum is σ = 51803160. Its totient is φ = 46622808.

The previous prime is 49212979. The next prime is 49213009. The reversal of 49212983 is 38921294.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 49212983 - 22 = 49212979 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49212883) 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, 1295060 + ... + 1295097.

It is an arithmetic number, because the mean of its divisors is an integer number (12950790).

Almost surely, 249212983 is an apocalyptic number.

49212983 is a deficient number, since it is larger than the sum of its proper divisors (2590177).

49212983 is a wasteful number, since it uses less digits than its factorization.

49212983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590176.

The product of its digits is 31104, while the sum is 38.

The square root of 49212983 is about 7015.1965760056. The cubic root of 49212983 is about 366.4599882989.

The spelling of 49212983 in words is "forty-nine million, two hundred twelve thousand, nine hundred eighty-three".

Divisors: 1 19 2590157 49212983