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47605493 = 138574273
BaseRepresentation
bin1011010110011…
…0011011110101
310022120121110102
42311212123311
544141333433
64420203445
71115432345
oct265463365
9108517412
1047605493
1124965791
1213b39585
139b2a540
146472d25
1542a54e8
hex2d666f5

47605493 has 8 divisors (see below), whose sum is σ = 51339288. Its totient is φ = 43881984.

The previous prime is 47605489. The next prime is 47605499. The reversal of 47605493 is 39450674.

It can be written as a sum of positive squares in 4 ways, for example, as 5121169 + 42484324 = 2263^2 + 6518^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47605493 - 22 = 47605489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47605499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9005 + ... + 13277.

It is an arithmetic number, because the mean of its divisors is an integer number (6417411).

Almost surely, 247605493 is an apocalyptic number.

It is an amenable number.

47605493 is a deficient number, since it is larger than the sum of its proper divisors (3733795).

47605493 is a wasteful number, since it uses less digits than its factorization.

47605493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 47605493 is about 6899.6733980675. The cubic root of 47605493 is about 362.4257300083.

The spelling of 47605493 in words is "forty-seven million, six hundred five thousand, four hundred ninety-three".

Divisors: 1 13 857 4273 11141 55549 3661961 47605493