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47133040 = 245589163
BaseRepresentation
bin1011001111001…
…1000101110000
310021200121101011
42303303011300
544031224130
64402120304
71111424053
oct263630560
9107617334
1047133040
1124672829
1213950094
1399c3496
14638ca9a
15421052a
hex2cf3170

47133040 has 20 divisors (see below), whose sum is σ = 109584504. Its totient is φ = 18853184.

The previous prime is 47133013. The next prime is 47133043. The reversal of 47133040 is 4033174.

It is a happy number.

47133040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47133043) 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, 294502 + ... + 294661.

Almost surely, 247133040 is an apocalyptic number.

47133040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47133040 is an abundant number, since it is smaller than the sum of its proper divisors (62451464).

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

47133040 is a wasteful number, since it uses less digits than its factorization.

47133040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589176 (or 589170 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 47133040 is about 6865.3506829586. The cubic root of 47133040 is about 361.2227966090. Note that the first 3 decimals are identical.

The spelling of 47133040 in words is "forty-seven million, one hundred thirty-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 589163 1178326 2356652 2945815 4713304 5891630 9426608 11783260 23566520 47133040