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8074405 = 51794993
BaseRepresentation
bin11110110011010010100101
3120012020000001
4132303102211
54031340110
6445021301
7125426353
oct36632245
916166001
108074405
114615469
122854831
131899271
1411027d3
15a9763a
hex7b34a5

8074405 has 8 divisors (see below), whose sum is σ = 10259352. Its totient is φ = 6079488.

The previous prime is 8074397. The next prime is 8074421. The reversal of 8074405 is 5044708.

It can be written as a sum of positive squares in 4 ways, for example, as 407044 + 7667361 = 638^2 + 2769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8074405 - 23 = 8074397 is a prime.

It is a super-2 number, since 2×80744052 = 130392032208050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47412 + ... + 47581.

It is an arithmetic number, because the mean of its divisors is an integer number (1282419).

Almost surely, 28074405 is an apocalyptic number.

8074405 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8074405 is a deficient number, since it is larger than the sum of its proper divisors (2184947).

8074405 is a wasteful number, since it uses less digits than its factorization.

8074405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95015.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 8074405 is about 2841.5497532157. The cubic root of 8074405 is about 200.6181292795.

The spelling of 8074405 in words is "eight million, seventy-four thousand, four hundred five".

Divisors: 1 5 17 85 94993 474965 1614881 8074405