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409581053 = 728358797
BaseRepresentation
bin11000011010011…
…011010111111101
31001112200212120122
4120122123113331
51314323043203
6104350424325
713102244600
oct3032332775
91045625518
10409581053
111a021a342
12b52020a5
1366b1756b
143c57a337
1525e57538
hex1869b5fd

409581053 has 6 divisors (see below), whose sum is σ = 476451486. Its totient is φ = 351069432.

The previous prime is 409580953. The next prime is 409581059. The reversal of 409581053 is 350185904.

It can be written as a sum of positive squares in only one way, i.e., 396886084 + 12694969 = 19922^2 + 3563^2 .

It is not a de Polignac number, because 409581053 - 28 = 409580797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409581059) 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, 4179350 + ... + 4179447.

It is an arithmetic number, because the mean of its divisors is an integer number (79408581).

Almost surely, 2409581053 is an apocalyptic number.

It is an amenable number.

409581053 is a deficient number, since it is larger than the sum of its proper divisors (66870433).

409581053 is an equidigital number, since it uses as much as digits as its factorization.

409581053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8358811 (or 8358804 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 409581053 is about 20238.1089284548. The cubic root of 409581053 is about 742.6427621359.

The spelling of 409581053 in words is "four hundred nine million, five hundred eighty-one thousand, fifty-three".

Divisors: 1 7 49 8358797 58511579 409581053