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6457141061 = 72131778389
BaseRepresentation
bin1100000001110000…
…00010011101000101
3121200000020202022122
412000320002131011
5101211012003221
62544422535325
7316004536100
oct60070023505
917600222278
106457141061
112813984718
121302597545
137bb9c5c37
14453809737
1527bd36eab
hex180e02745

6457141061 has 6 divisors (see below), whose sum is σ = 7511368230. Its totient is φ = 5534692296.

The previous prime is 6457141057. The next prime is 6457141087. The reversal of 6457141061 is 1601417546.

It can be written as a sum of positive squares in only one way, i.e., 6223632100 + 233508961 = 78890^2 + 15281^2 .

It is not a de Polignac number, because 6457141061 - 22 = 6457141057 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 (6457143061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65889146 + ... + 65889243.

It is an arithmetic number, because the mean of its divisors is an integer number (1251894705).

Almost surely, 26457141061 is an apocalyptic number.

It is an amenable number.

6457141061 is a deficient number, since it is larger than the sum of its proper divisors (1054227169).

6457141061 is a wasteful number, since it uses less digits than its factorization.

6457141061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131778403 (or 131778396 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 6457141061 is about 80356.3380263187. The cubic root of 6457141061 is about 1862.1446973311.

The spelling of 6457141061 in words is "six billion, four hundred fifty-seven million, one hundred forty-one thousand, sixty-one".

Divisors: 1 7 49 131778389 922448723 6457141061