Search a number
-
+
1377359471 is a prime number
BaseRepresentation
bin101001000011000…
…1101011001101111
310112222202002222202
41102012031121233
510310101000341
6344401332115
746063235165
oct12206153157
93488662882
101377359471
11647535614
1232533703b
1318c482507
14d0cdb235
1580dc179b
hex5218d66f

1377359471 has 2 divisors, whose sum is σ = 1377359472. Its totient is φ = 1377359470.

The previous prime is 1377359449. The next prime is 1377359483. The reversal of 1377359471 is 1749537731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1377359471 - 210 = 1377358447 is a prime.

It is a super-3 number, since 3×13773594713 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377359671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688679735 + 688679736.

It is an arithmetic number, because the mean of its divisors is an integer number (688679736).

Almost surely, 21377359471 is an apocalyptic number.

1377359471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377359471 is an equidigital number, since it uses as much as digits as its factorization.

1377359471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 555660, while the sum is 47.

The square root of 1377359471 is about 37112.7938991394. The cubic root of 1377359471 is about 1112.6257323030.

The spelling of 1377359471 in words is "one billion, three hundred seventy-seven million, three hundred fifty-nine thousand, four hundred seventy-one".