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47073040 = 245784059
BaseRepresentation
bin1011001110010…
…0011100010000
310021120120001221
42303210130100
544022314130
64400534424
71111054120
oct263443420
9107516057
1047073040
1124631743
1213921414
1399a2091
146374c80
1541ec87a
hex2ce4710

47073040 has 40 divisors (see below), whose sum is σ = 125081280. Its totient is φ = 16139136.

The previous prime is 47073031. The next prime is 47073041. The reversal of 47073040 is 4037074.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 47072996 and 47073014.

It is not an unprimeable number, because it can be changed into a prime (47073041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41470 + ... + 42589.

It is an arithmetic number, because the mean of its divisors is an integer number (3127032).

Almost surely, 247073040 is an apocalyptic number.

47073040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47073040 is an abundant number, since it is smaller than the sum of its proper divisors (78008240).

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

47073040 is a wasteful number, since it uses less digits than its factorization.

47073040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84079 (or 84073 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 47073040 is about 6860.9795219050. The cubic root of 47073040 is about 361.0694535685.

The spelling of 47073040 in words is "forty-seven million, seventy-three thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 84059 168118 336236 420295 588413 672472 840590 1176826 1344944 1681180 2353652 2942065 3362360 4707304 5884130 6724720 9414608 11768260 23536520 47073040