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47051284 = 2272373061
BaseRepresentation
bin1011001101111…
…1001000010100
310021112110020011
42303133020110
544021120114
64400250004
71110633520
oct263371024
9107473204
1047051284
1124617365
1213910904
1399951c7
14636ad80
1541e61c4
hex2cdf214

47051284 has 24 divisors (see below), whose sum is σ = 98195328. Its totient is φ = 19287840.

The previous prime is 47051281. The next prime is 47051287. The reversal of 47051284 is 48215074.

47051284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47051281) and next prime (47051287).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47051281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35887 + ... + 37174.

It is an arithmetic number, because the mean of its divisors is an integer number (4091472).

Almost surely, 247051284 is an apocalyptic number.

It is an amenable number.

47051284 is an abundant number, since it is smaller than the sum of its proper divisors (51144044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47051284 is a wasteful number, since it uses less digits than its factorization.

47051284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73095 (or 73093 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 47051284 is about 6859.3938507714. The cubic root of 47051284 is about 361.0138191931.

It can be divided in two parts, 470512 and 84, that added together give a square (470596 = 6862).

The spelling of 47051284 in words is "forty-seven million, fifty-one thousand, two hundred eighty-four".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 73061 146122 292244 511427 1022854 1680403 2045708 3360806 6721612 11762821 23525642 47051284