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49314981 = 316438327
BaseRepresentation
bin1011110000011…
…1110010100101
310102210110102210
42330013302211
5100111034411
64520554033
71136112312
oct274076245
9112713383
1049314981
1125923091
1214622919
13a2a8681
146799d09
1544e1ca6
hex2f07ca5

49314981 has 4 divisors (see below), whose sum is σ = 65753312. Its totient is φ = 32876652.

The previous prime is 49314971. The next prime is 49315001. The reversal of 49314981 is 18941394.

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 not a de Polignac number, because 49314981 - 25 = 49314949 is a prime.

It is a super-2 number, since 2×493149812 = 4863934702060722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49314911) 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, 8219161 + ... + 8219166.

It is an arithmetic number, because the mean of its divisors is an integer number (16438328).

Almost surely, 249314981 is an apocalyptic number.

It is an amenable number.

49314981 is a deficient number, since it is larger than the sum of its proper divisors (16438331).

49314981 is a wasteful number, since it uses less digits than its factorization.

49314981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16438330.

The product of its digits is 31104, while the sum is 39.

The square root of 49314981 is about 7022.4626022500. The cubic root of 49314981 is about 366.7129865266.

The spelling of 49314981 in words is "forty-nine million, three hundred fourteen thousand, nine hundred eighty-one".

Divisors: 1 3 16438327 49314981