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47886493 = 127377059
BaseRepresentation
bin1011011010101…
…1000010011101
310100002212220211
42312223002131
544224331433
64430212421
71121012524
oct266530235
9110085824
1047886493
1125037916
1214054111
139bc8405
1465074bb
15430d8cd
hex2dab09d

47886493 has 4 divisors (see below), whose sum is σ = 48263680. Its totient is φ = 47509308.

The previous prime is 47886491. The next prime is 47886499. The reversal of 47886493 is 39468874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47886493 - 21 = 47886491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47886491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188403 + ... + 188656.

It is an arithmetic number, because the mean of its divisors is an integer number (12065920).

Almost surely, 247886493 is an apocalyptic number.

It is an amenable number.

47886493 is a deficient number, since it is larger than the sum of its proper divisors (377187).

47886493 is a wasteful number, since it uses less digits than its factorization.

47886493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377186.

The product of its digits is 1161216, while the sum is 49.

The square root of 47886493 is about 6920.0067196499. The cubic root of 47886493 is about 363.1374259264.

The spelling of 47886493 in words is "forty-seven million, eight hundred eighty-six thousand, four hundred ninety-three".

Divisors: 1 127 377059 47886493