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49401953 = 232147911
BaseRepresentation
bin1011110001110…
…1000001100001
310102221212201222
42330131001201
5100121330303
64522504425
71136624006
oct274350141
9112855658
1049401953
1125982467
1214665115
13a309133
1467bd8ad
15450c938
hex2f1d061

49401953 has 4 divisors (see below), whose sum is σ = 51549888. Its totient is φ = 47254020.

The previous prime is 49401943. The next prime is 49401971. The reversal of 49401953 is 35910494.

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 49401953 - 26 = 49401889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49401923) 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, 1073933 + ... + 1073978.

It is an arithmetic number, because the mean of its divisors is an integer number (12887472).

Almost surely, 249401953 is an apocalyptic number.

It is an amenable number.

49401953 is a deficient number, since it is larger than the sum of its proper divisors (2147935).

49401953 is a wasteful number, since it uses less digits than its factorization.

49401953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147934.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 49401953 is about 7028.6522890238. The cubic root of 49401953 is about 366.9284385067.

The spelling of 49401953 in words is "forty-nine million, four hundred one thousand, nine hundred fifty-three".

Divisors: 1 23 2147911 49401953