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47987373 = 372978797
BaseRepresentation
bin1011011100001…
…1101010101101
310100022000022010
42313003222231
544241043443
64432311433
71121612610
oct267035255
9110260263
1047987373
11250a6695
12140a2579
139c322c5
146532177
15432d733
hex2dc3aad

47987373 has 16 divisors (see below), whose sum is σ = 75646080. Its totient is φ = 26475456.

The previous prime is 47987351. The next prime is 47987377. The reversal of 47987373 is 37378974.

It is a happy number.

It is not a de Polignac number, because 47987373 - 25 = 47987341 is a prime.

It is a super-2 number, since 2×479873732 = 4605575934882258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47987377) 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, 38790 + ... + 40007.

It is an arithmetic number, because the mean of its divisors is an integer number (4727880).

Almost surely, 247987373 is an apocalyptic number.

It is an amenable number.

47987373 is a deficient number, since it is larger than the sum of its proper divisors (27658707).

47987373 is a wasteful number, since it uses less digits than its factorization.

47987373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78836.

The product of its digits is 889056, while the sum is 48.

The square root of 47987373 is about 6927.2918951059. The cubic root of 47987373 is about 363.3922480192.

The spelling of 47987373 in words is "forty-seven million, nine hundred eighty-seven thousand, three hundred seventy-three".

Divisors: 1 3 7 21 29 87 203 609 78797 236391 551579 1654737 2285113 6855339 15995791 47987373