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47457148 = 2220535779
BaseRepresentation
bin1011010100001…
…0001101111100
310022022001222011
42311002031330
544122112043
64413101004
71114244014
oct265021574
9108261864
1047457148
1124874292
1213a87764
139aa7b6b
146434c44
15427659d
hex2d4237c

47457148 has 12 divisors (see below), whose sum is σ = 83104840. Its totient is φ = 23712912.

The previous prime is 47457143. The next prime is 47457191. The reversal of 47457148 is 84175474.

It is a happy number.

47457148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 47457148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47457143) 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 3 ways as a sum of consecutive naturals, for example, 5323 + ... + 11101.

Almost surely, 247457148 is an apocalyptic number.

It is an amenable number.

47457148 is a deficient number, since it is larger than the sum of its proper divisors (35647692).

47457148 is a wasteful number, since it uses less digits than its factorization.

47457148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7836 (or 7834 counting only the distinct ones).

The product of its digits is 125440, while the sum is 40.

The square root of 47457148 is about 6888.9148637503. The cubic root of 47457148 is about 362.0488828303.

The spelling of 47457148 in words is "forty-seven million, four hundred fifty-seven thousand, one hundred forty-eight".

Divisors: 1 2 4 2053 4106 5779 8212 11558 23116 11864287 23728574 47457148