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60078005 = 5131934789
BaseRepresentation
bin1110010100101…
…1011110110101
311012001021112022
43211023132311
5110334444010
65543402525
71326440351
oct345133665
9135037468
1060078005
1130a04549
1218153445
13c5a6620
147d9c461
15541ad55
hex394b7b5

60078005 has 16 divisors (see below), whose sum is σ = 78057840. Its totient is φ = 44126208.

The previous prime is 60077987. The next prime is 60078023. The reversal of 60078005 is 50087006.

It is an interprime number because it is at equal distance from previous prime (60077987) and next prime (60078023).

It can be written as a sum of positive squares in 8 ways, for example, as 22648081 + 37429924 = 4759^2 + 6118^2 .

It is a cyclic number.

It is not a de Polignac number, because 60078005 - 210 = 60076981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10151 + ... + 14939.

It is an arithmetic number, because the mean of its divisors is an integer number (4878615).

Almost surely, 260078005 is an apocalyptic number.

60078005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

60078005 is a deficient number, since it is larger than the sum of its proper divisors (17979835).

60078005 is a wasteful number, since it uses less digits than its factorization.

60078005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 60078005 is about 7751.0002580312. Note that the first 3 decimals coincide. The cubic root of 60078005 is about 391.6563457871.

Subtracting from 60078005 its reverse (50087006), we obtain a palindrome (9990999).

The spelling of 60078005 in words is "sixty million, seventy-eight thousand, five".

Divisors: 1 5 13 65 193 965 2509 4789 12545 23945 62257 311285 924277 4621385 12015601 60078005