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47008880 = 2455311087
BaseRepresentation
bin1011001101010…
…0110001110000
310021110022001122
42303110301300
544013241010
64355321412
71110366062
oct263246160
9107408048
1047008880
1124598516
12138b0268
13997bb09
146359732
1541d8855
hex2cd4c70

47008880 has 40 divisors (see below), whose sum is σ = 111367872. Its totient is φ = 18447104.

The previous prime is 47008879. The next prime is 47008991. The reversal of 47008880 is 8880074.

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

It is a self number, because there is not a number n which added to its sum of digits gives 47008880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304 + ... + 9783.

Almost surely, 247008880 is an apocalyptic number.

47008880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47008880 is an abundant number, since it is smaller than the sum of its proper divisors (64358992).

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

47008880 is a wasteful number, since it uses less digits than its factorization.

47008880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11153 (or 11147 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 47008880 is about 6856.3022103755. The cubic root of 47008880 is about 360.9053345086.

The spelling of 47008880 in words is "forty-seven million, eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 212 265 424 530 848 1060 2120 4240 11087 22174 44348 55435 88696 110870 177392 221740 443480 587611 886960 1175222 2350444 2938055 4700888 5876110 9401776 11752220 23504440 47008880