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47424047 = 11371091069
BaseRepresentation
bin1011010011101…
…0001000101111
310022020101120012
42310322020233
544120032142
64412243435
71114045346
oct264721057
9108211505
1047424047
1124851430
1213a7057b
139a95a88
146426b5d
15426b882
hex2d3a22f

47424047 has 16 divisors (see below), whose sum is σ = 53671200. Its totient is φ = 41523840.

The previous prime is 47424001. The next prime is 47424049. The reversal of 47424047 is 74042474.

It is a cyclic number.

It is not a de Polignac number, because 47424047 - 220 = 46375471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47424049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43829 + ... + 44897.

It is an arithmetic number, because the mean of its divisors is an integer number (3354450).

Almost surely, 247424047 is an apocalyptic number.

47424047 is a deficient number, since it is larger than the sum of its proper divisors (6247153).

47424047 is a wasteful number, since it uses less digits than its factorization.

47424047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226.

The product of its (nonzero) digits is 25088, while the sum is 32.

The square root of 47424047 is about 6886.5119617989. The cubic root of 47424047 is about 361.9646878042.

The spelling of 47424047 in words is "forty-seven million, four hundred twenty-four thousand, forty-seven".

Divisors: 1 11 37 109 407 1069 1199 4033 11759 39553 44363 116521 435083 1281731 4311277 47424047