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47408493 = 3114992879
BaseRepresentation
bin1011010011011…
…0010101101101
310022012121020010
42310312111231
544114032433
64412043433
71113652116
oct264662555
9108177203
1047408493
1124840780
1213a63579
139a8b982
14642120d
154266e63
hex2d3656d

47408493 has 16 divisors (see below), whose sum is σ = 69120000. Its totient is φ = 28664880.

The previous prime is 47408479. The next prime is 47408513. The reversal of 47408493 is 39480474.

It is not a de Polignac number, because 47408493 - 28 = 47408237 is a prime.

It is a super-3 number, since 3×474084933 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47408993) 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, 15028 + ... + 17906.

It is an arithmetic number, because the mean of its divisors is an integer number (4320000).

Almost surely, 247408493 is an apocalyptic number.

It is an amenable number.

47408493 is a deficient number, since it is larger than the sum of its proper divisors (21711507).

47408493 is a wasteful number, since it uses less digits than its factorization.

47408493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 47408493 is about 6885.3825601778. The cubic root of 47408493 is about 361.9251114379.

The spelling of 47408493 in words is "forty-seven million, four hundred eight thousand, four hundred ninety-three".

Divisors: 1 3 11 33 499 1497 2879 5489 8637 16467 31669 95007 1436621 4309863 15802831 47408493