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47976913 is a prime number
BaseRepresentation
bin1011011100000…
…1000111010001
310100021110221201
42313001013101
544240230123
64432151201
71121540245
oct267010721
9110243851
1047976913
1125099846
1214098501
139c2a60a
14652c425
15432a5ad
hex2dc11d1

47976913 has 2 divisors, whose sum is σ = 47976914. Its totient is φ = 47976912.

The previous prime is 47976899. The next prime is 47976923. The reversal of 47976913 is 31967974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43864129 + 4112784 = 6623^2 + 2028^2 .

It is a cyclic number.

It is not a de Polignac number, because 47976913 - 217 = 47845841 is a prime.

It is not a weakly prime, because it can be changed into another prime (47976923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23988456 + 23988457.

It is an arithmetic number, because the mean of its divisors is an integer number (23988457).

Almost surely, 247976913 is an apocalyptic number.

It is an amenable number.

47976913 is a deficient number, since it is larger than the sum of its proper divisors (1).

47976913 is an equidigital number, since it uses as much as digits as its factorization.

47976913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 46.

The square root of 47976913 is about 6926.5368691721. The cubic root of 47976913 is about 363.3658427457.

The spelling of 47976913 in words is "forty-seven million, nine hundred seventy-six thousand, nine hundred thirteen".