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47030440 = 2355872003
BaseRepresentation
bin1011001101101…
…0000010101000
310021111101122011
42303122002220
544014433230
64400005304
71110515662
oct263320250
9107441564
1047030440
1124602736
1213900834
139988882
146363532
1541dee2a
hex2cda0a8

47030440 has 32 divisors (see below), whose sum is σ = 106051680. Its totient is φ = 18770752.

The previous prime is 47030429. The next prime is 47030443. The reversal of 47030440 is 4403074.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (47030443) 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, 22479 + ... + 24481.

It is an arithmetic number, because the mean of its divisors is an integer number (3314115).

Almost surely, 247030440 is an apocalyptic number.

47030440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47030440 is an abundant number, since it is smaller than the sum of its proper divisors (59021240).

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

47030440 is a wasteful number, since it uses less digits than its factorization.

47030440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601 (or 2597 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 47030440 is about 6857.8743062264. The cubic root of 47030440 is about 360.9605008924.

The spelling of 47030440 in words is "forty-seven million, thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 587 1174 2003 2348 2935 4006 4696 5870 8012 10015 11740 16024 20030 23480 40060 80120 1175761 2351522 4703044 5878805 9406088 11757610 23515220 47030440