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47921483 = 391112253
BaseRepresentation
bin1011011011001…
…1100101001011
310100011122220202
42312303211023
544231441413
64431042415
71121216531
oct266634513
9110148822
1047921483
1125061135
121407040b
139c0b30c
146516151
154318e58
hex2db394b

47921483 has 4 divisors (see below), whose sum is σ = 47937648. Its totient is φ = 47905320.

The previous prime is 47921441. The next prime is 47921491. The reversal of 47921483 is 38412974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38412974 = 219206487.

It is a cyclic number.

It is not a de Polignac number, because 47921483 - 210 = 47920459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47921183) 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, 2216 + ... + 10037.

It is an arithmetic number, because the mean of its divisors is an integer number (11984412).

Almost surely, 247921483 is an apocalyptic number.

47921483 is a deficient number, since it is larger than the sum of its proper divisors (16165).

47921483 is a wasteful number, since it uses less digits than its factorization.

47921483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16164.

The product of its digits is 48384, while the sum is 38.

The square root of 47921483 is about 6922.5344347284. The cubic root of 47921483 is about 363.2258508958.

The spelling of 47921483 in words is "forty-seven million, nine hundred twenty-one thousand, four hundred eighty-three".

Divisors: 1 3911 12253 47921483