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408452093 = 7218774441
BaseRepresentation
bin11000010110000…
…111101111111101
31001110120111221022
4120112013233331
51314030431333
6104310313525
713056533300
oct3026075775
91043514838
10408452093
1119a619115
12b49588a5
136681073a
143c364b37
1525cd2c98
hex18587bfd

408452093 has 12 divisors (see below), whose sum is σ = 475498332. Its totient is φ = 349836480.

The previous prime is 408452087. The next prime is 408452111. The reversal of 408452093 is 390254804.

It can be written as a sum of positive squares in 2 ways, for example, as 206726884 + 201725209 = 14378^2 + 14203^2 .

It is not a de Polignac number, because 408452093 - 28 = 408451837 is a prime.

It is a super-2 number, since 2×4084520932 = 333666224552161298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408452003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89753 + ... + 94193.

It is an arithmetic number, because the mean of its divisors is an integer number (39624861).

Almost surely, 2408452093 is an apocalyptic number.

It is an amenable number.

408452093 is a deficient number, since it is larger than the sum of its proper divisors (67046239).

408452093 is a wasteful number, since it uses less digits than its factorization.

408452093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332 (or 6325 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 408452093 is about 20210.1977476718. The cubic root of 408452093 is about 741.9597996495.

The spelling of 408452093 in words is "four hundred eight million, four hundred fifty-two thousand, ninety-three".

Divisors: 1 7 49 1877 4441 13139 31087 91973 217609 8335757 58350299 408452093